diff --git a/dist/underscore.string.min.js b/dist/underscore.string.min.js
index 4f6b2b93..10a32c30 100644
--- a/dist/underscore.string.min.js
+++ b/dist/underscore.string.min.js
@@ -1 +1 @@
-!function(e,n){"use strict";function r(e,n){var r,t,u=e.toLowerCase();for(n=[].concat(n),r=0;n.length>r;r+=1)if(t=n[r]){if(t.test&&t.test(e))return!0;if(t.toLowerCase()===u)return!0}}var t=n.prototype.trim,u=n.prototype.trimRight,i=n.prototype.trimLeft,l=function(e){return 1*e||0},o=function(e,n){if(1>n)return"";for(var r="";n>0;)1&n&&(r+=e),n>>=1,e+=e;return r},a=[].slice,c=function(e){return null==e?"\\s":e.source?e.source:"["+g.escapeRegExp(e)+"]"},s={lt:"<",gt:">",quot:'"',amp:"&",apos:"'"},f={};for(var p in s)f[s[p]]=p;f["'"]="#39";var h=function(){function e(e){return Object.prototype.toString.call(e).slice(8,-1).toLowerCase()}var r=o,t=function(){return t.cache.hasOwnProperty(arguments[0])||(t.cache[arguments[0]]=t.parse(arguments[0])),t.format.call(null,t.cache[arguments[0]],arguments)};return t.format=function(t,u){var i,l,o,a,c,s,f,p=1,g=t.length,d="",m=[];for(l=0;g>l;l++)if(d=e(t[l]),"string"===d)m.push(t[l]);else if("array"===d){if(a=t[l],a[2])for(i=u[p],o=0;a[2].length>o;o++){if(!i.hasOwnProperty(a[2][o]))throw new Error(h('[_.sprintf] property "%s" does not exist',a[2][o]));i=i[a[2][o]]}else i=a[1]?u[a[1]]:u[p++];if(/[^s]/.test(a[8])&&"number"!=e(i))throw new Error(h("[_.sprintf] expecting number but found %s",e(i)));switch(a[8]){case"b":i=i.toString(2);break;case"c":i=n.fromCharCode(i);break;case"d":i=parseInt(i,10);break;case"e":i=a[7]?i.toExponential(a[7]):i.toExponential();break;case"f":i=a[7]?parseFloat(i).toFixed(a[7]):parseFloat(i);break;case"o":i=i.toString(8);break;case"s":i=(i=n(i))&&a[7]?i.substring(0,a[7]):i;break;case"u":i=Math.abs(i);break;case"x":i=i.toString(16);break;case"X":i=i.toString(16).toUpperCase()}i=/[def]/.test(a[8])&&a[3]&&i>=0?"+"+i:i,s=a[4]?"0"==a[4]?"0":a[4].charAt(1):" ",f=a[6]-n(i).length,c=a[6]?r(s,f):"",m.push(a[5]?i+c:c+i)}return m.join("")},t.cache={},t.parse=function(e){for(var n=e,r=[],t=[],u=0;n;){if(null!==(r=/^[^\x25]+/.exec(n)))t.push(r[0]);else if(null!==(r=/^\x25{2}/.exec(n)))t.push("%");else{if(null===(r=/^\x25(?:([1-9]\d*)\$|\(([^\)]+)\))?(\+)?(0|'[^$])?(-)?(\d+)?(?:\.(\d+))?([b-fosuxX])/.exec(n)))throw new Error("[_.sprintf] huh?");if(r[2]){u|=1;var i=[],l=r[2],o=[];if(null===(o=/^([a-z_][a-z_\d]*)/i.exec(l)))throw new Error("[_.sprintf] huh?");for(i.push(o[1]);""!==(l=l.substring(o[0].length));)if(null!==(o=/^\.([a-z_][a-z_\d]*)/i.exec(l)))i.push(o[1]);else{if(null===(o=/^\[(\d+)\]/.exec(l)))throw new Error("[_.sprintf] huh?");i.push(o[1])}r[2]=i}else u|=2;if(3===u)throw new Error("[_.sprintf] mixing positional and named placeholders is not (yet) supported");t.push(r)}n=n.substring(r[0].length)}return t},t}(),g={VERSION:"2.3.0",isBlank:function(e){return null==e&&(e=""),/^\s*$/.test(e)},stripTags:function(e){return null==e?"":n(e).replace(/<\/?[^>]+>/g,"")},capitalize:function(e){return e=null==e?"":n(e),e.charAt(0).toUpperCase()+e.slice(1)},chop:function(e,r){return null==e?[]:(e=n(e),r=~~r,r>0?e.match(new RegExp(".{1,"+r+"}","g")):[e])},clean:function(e){return g.strip(e).replace(/\s+/g," ")},count:function(e,r){if(null==e||null==r)return 0;e=n(e),r=n(r);for(var t=0,u=0,i=r.length;;){if(u=e.indexOf(r,u),-1===u)break;t++,u+=i}return t},chars:function(e){return null==e?[]:n(e).split("")},swapCase:function(e){return null==e?"":n(e).replace(/\S/g,function(e){return e===e.toUpperCase()?e.toLowerCase():e.toUpperCase()})},escapeHTML:function(e){return null==e?"":n(e).replace(/[&<>"']/g,function(e){return"&"+f[e]+";"})},unescapeHTML:function(e){return null==e?"":n(e).replace(/\&([^;]+);/g,function(e,r){var t;return r in s?s[r]:(t=r.match(/^#x([\da-fA-F]+)$/))?n.fromCharCode(parseInt(t[1],16)):(t=r.match(/^#(\d+)$/))?n.fromCharCode(~~t[1]):e})},escapeRegExp:function(e){return null==e?"":n(e).replace(/([.*+?^=!:${}()|[\]\/\\])/g,"\\$1")},splice:function(e,n,r,t){var u=g.chars(e);return u.splice(~~n,~~r,t),u.join("")},insert:function(e,n,r){return g.splice(e,n,0,r)},include:function(e,r){return""===r?!0:null==e?!1:-1!==n(e).indexOf(r)},join:function(){var e=a.call(arguments),n=e.shift();return null==n&&(n=""),e.join(n)},lines:function(e){return null==e?[]:n(e).split("\n")},reverse:function(e){return g.chars(e).reverse().join("")},startsWith:function(e,r){return""===r?!0:null==e||null==r?!1:(e=n(e),r=n(r),e.length>=r.length&&e.slice(0,r.length)===r)},endsWith:function(e,r){return""===r?!0:null==e||null==r?!1:(e=n(e),r=n(r),e.length>=r.length&&e.slice(e.length-r.length)===r)},succ:function(e){return null==e?"":(e=n(e),e.slice(0,-1)+n.fromCharCode(e.charCodeAt(e.length-1)+1))},titleize:function(e){return null==e?"":(e=n(e).toLowerCase(),e.replace(/(?:^|\s|-)\S/g,function(e){return e.toUpperCase()}))},camelize:function(e){return g.trim(e).replace(/[-_\s]+(.)?/g,function(e,n){return n?n.toUpperCase():""})},underscored:function(e){return g.trim(e).replace(/([a-z\d])([A-Z]+)/g,"$1_$2").replace(/[-\s]+/g,"_").toLowerCase()},dasherize:function(e){return g.trim(e).replace(/([A-Z])/g,"-$1").replace(/[-_\s]+/g,"-").toLowerCase()},classify:function(e){return g.titleize(n(e).replace(/[\W_]/g," ")).replace(/\s/g,"")},humanize:function(e){return g.capitalize(g.underscored(e).replace(/_id$/,"").replace(/_/g," "))},trim:function(e,r){return null==e?"":!r&&t?t.call(e):(r=c(r),n(e).replace(new RegExp("^"+r+"+|"+r+"+$","g"),""))},ltrim:function(e,r){return null==e?"":!r&&i?i.call(e):(r=c(r),n(e).replace(new RegExp("^"+r+"+"),""))},rtrim:function(e,r){return null==e?"":!r&&u?u.call(e):(r=c(r),n(e).replace(new RegExp(r+"+$"),""))},truncate:function(e,r,t){return null==e?"":(e=n(e),t=t||"...",r=~~r,e.length>r?e.slice(0,r)+t:e)},prune:function(e,r,t){if(null==e)return"";if(e=n(e),r=~~r,t=null!=t?n(t):"...",r>=e.length)return e;var u=function(e){return e.toUpperCase()!==e.toLowerCase()?"A":" "},i=e.slice(0,r+1).replace(/.(?=\W*\w*$)/g,u);return i=i.slice(i.length-2).match(/\w\w/)?i.replace(/\s*\S+$/,""):g.rtrim(i.slice(0,i.length-1)),(i+t).length>e.length?e:e.slice(0,i.length)+t},words:function(e,n){return g.isBlank(e)?[]:g.trim(e,n).split(n||/\s+/)},pad:function(e,r,t,u){e=null==e?"":n(e),r=~~r;var i=0;switch(t?t.length>1&&(t=t.charAt(0)):t=" ",u){case"right":return i=r-e.length,e+o(t,i);case"both":return i=r-e.length,o(t,Math.ceil(i/2))+e+o(t,Math.floor(i/2));default:return i=r-e.length,o(t,i)+e}},lpad:function(e,n,r){return g.pad(e,n,r)},rpad:function(e,n,r){return g.pad(e,n,r,"right")},lrpad:function(e,n,r){return g.pad(e,n,r,"both")},sprintf:h,vsprintf:function(e,n){return n.unshift(e),h.apply(null,n)},toNumber:function(e,n){return e?(e=g.trim(e),e.match(/^-?\d+(?:\.\d+)?$/)?l(l(e).toFixed(~~n)):0/0):0},numberFormat:function(e,n,r,t){if(isNaN(e)||null==e)return"";e=e.toFixed(~~n),t="string"==typeof t?t:",";var u=e.split("."),i=u[0],l=u[1]?(r||".")+u[1]:"";return i.replace(/(\d)(?=(?:\d{3})+$)/g,"$1"+t)+l},strRight:function(e,r){if(null==e)return"";e=n(e),r=null!=r?n(r):r;var t=r?e.indexOf(r):-1;return~t?e.slice(t+r.length,e.length):e},strRightBack:function(e,r){if(null==e)return"";e=n(e),r=null!=r?n(r):r;var t=r?e.lastIndexOf(r):-1;return~t?e.slice(t+r.length,e.length):e},strLeft:function(e,r){if(null==e)return"";e=n(e),r=null!=r?n(r):r;var t=r?e.indexOf(r):-1;return~t?e.slice(0,t):e},strLeftBack:function(e,n){if(null==e)return"";e+="",n=null!=n?""+n:n;var r=e.lastIndexOf(n);return~r?e.slice(0,r):e},toSentence:function(e,n,r,t){n=n||", ",r=r||" and ";var u=e.slice(),i=u.pop();return e.length>2&&t&&(r=g.rtrim(n)+r),u.length?u.join(n)+r+i:i},toSentenceSerial:function(){var e=a.call(arguments);return e[3]=!0,g.toSentence.apply(g,e)},slugify:function(e){if(null==e)return"";var r="ąàáäâãåæăćęèéëêìíïîłńòóöôõøśșțùúüûñçżź",t="aaaaaaaaaceeeeeiiiilnoooooosstuuuunczz",u=new RegExp(c(r),"g");return e=n(e).toLowerCase().replace(u,function(e){var n=r.indexOf(e);return t.charAt(n)||"-"}),g.dasherize(e.replace(/[^\w\s-]/g,""))},surround:function(e,n){return[n,e,n].join("")},quote:function(e,n){return g.surround(e,n||'"')},unquote:function(e,n){return n=n||'"',e[0]===n&&e[e.length-1]===n?e.slice(1,e.length-1):e},exports:function(){var e={};for(var n in this)this.hasOwnProperty(n)&&!n.match(/^(?:include|contains|reverse)$/)&&(e[n]=this[n]);return e},repeat:function(e,r,t){if(null==e)return"";if(r=~~r,null==t)return o(n(e),r);for(var u=[];r>0;u[--r]=e);return u.join(t)},naturalCmp:function(e,r){if(e==r)return 0;if(!e)return-1;if(!r)return 1;for(var t=/(\.\d+)|(\d+)|(\D+)/g,u=n(e).toLowerCase().match(t),i=n(r).toLowerCase().match(t),l=Math.min(u.length,i.length),o=0;l>o;o++){var a=u[o],c=i[o];if(a!==c){var s=parseInt(a,10);if(!isNaN(s)){var f=parseInt(c,10);if(!isNaN(f)&&s-f)return s-f}return c>a?-1:1}}return u.length===i.length?u.length-i.length:r>e?-1:1},levenshtein:function(e,r){if(null==e&&null==r)return 0;if(null==e)return n(r).length;if(null==r)return n(e).length;e=n(e),r=n(r);for(var t,u,i=[],l=0;r.length>=l;l++)for(var o=0;e.length>=o;o++)u=l&&o?e.charAt(o-1)===r.charAt(l-1)?t:Math.min(i[o],i[o-1],t)+1:l+o,t=i[o],i[o]=u;return i.pop()},toBoolean:function(e,n,t){return"number"==typeof e&&(e=""+e),"string"!=typeof e?!!e:(e=g.trim(e),r(e,n||["true","1"])?!0:r(e,t||["false","0"])?!1:void 0)}};g.strip=g.trim,g.lstrip=g.ltrim,g.rstrip=g.rtrim,g.center=g.lrpad,g.rjust=g.lpad,g.ljust=g.rpad,g.contains=g.include,g.q=g.quote,g.toBool=g.toBoolean,"undefined"!=typeof exports&&("undefined"!=typeof module&&module.exports&&(module.exports=g),exports._s=g),"function"==typeof define&&define.amd&&define("underscore.string",[],function(){return g}),e._=e._||{},e._.string=e._.str=g}(this,String);
\ No newline at end of file
+!function(e,n){"use strict";function r(e,n){var r,t,u=e.toLowerCase();for(n=[].concat(n),r=0;r<n.length;r+=1)if(t=n[r]){if(t.test&&t.test(e))return!0;if(t.toLowerCase()===u)return!0}}var t=n.prototype.trim,u=n.prototype.trimRight,i=n.prototype.trimLeft,l=function(e){return 1*e||0},o=function(e,n){if(1>n)return"";for(var r="";n>0;)1&n&&(r+=e),n>>=1,e+=e;return r},a=[].slice,c=function(e){return null==e?"\\s":e.source?e.source:"["+g.escapeRegExp(e)+"]"},s={lt:"<",gt:">",quot:'"',amp:"&",apos:"'"},f={};for(var p in s)f[s[p]]=p;f["'"]="#39";var h=function(){function e(e){return Object.prototype.toString.call(e).slice(8,-1).toLowerCase()}var r=o,t=function(){return t.cache.hasOwnProperty(arguments[0])||(t.cache[arguments[0]]=t.parse(arguments[0])),t.format.call(null,t.cache[arguments[0]],arguments)};return t.format=function(t,u){var i,l,o,a,c,s,f,p=1,g=t.length,d="",m=[];for(l=0;g>l;l++)if(d=e(t[l]),"string"===d)m.push(t[l]);else if("array"===d){if(a=t[l],a[2])for(i=u[p],o=0;o<a[2].length;o++){if(!i.hasOwnProperty(a[2][o]))throw new Error(h('[_.sprintf] property "%s" does not exist',a[2][o]));i=i[a[2][o]]}else i=a[1]?u[a[1]]:u[p++];if(/[^s]/.test(a[8])&&"number"!=e(i))throw new Error(h("[_.sprintf] expecting number but found %s",e(i)));switch(a[8]){case"b":i=i.toString(2);break;case"c":i=n.fromCharCode(i);break;case"d":i=parseInt(i,10);break;case"e":i=a[7]?i.toExponential(a[7]):i.toExponential();break;case"f":i=a[7]?parseFloat(i).toFixed(a[7]):parseFloat(i);break;case"o":i=i.toString(8);break;case"s":i=(i=n(i))&&a[7]?i.substring(0,a[7]):i;break;case"u":i=Math.abs(i);break;case"x":i=i.toString(16);break;case"X":i=i.toString(16).toUpperCase()}i=/[def]/.test(a[8])&&a[3]&&i>=0?"+"+i:i,s=a[4]?"0"==a[4]?"0":a[4].charAt(1):" ",f=a[6]-n(i).length,c=a[6]?r(s,f):"",m.push(a[5]?i+c:c+i)}return m.join("")},t.cache={},t.parse=function(e){for(var n=e,r=[],t=[],u=0;n;){if(null!==(r=/^[^\x25]+/.exec(n)))t.push(r[0]);else if(null!==(r=/^\x25{2}/.exec(n)))t.push("%");else{if(null===(r=/^\x25(?:([1-9]\d*)\$|\(([^\)]+)\))?(\+)?(0|'[^$])?(-)?(\d+)?(?:\.(\d+))?([b-fosuxX])/.exec(n)))throw new Error("[_.sprintf] huh?");if(r[2]){u|=1;var i=[],l=r[2],o=[];if(null===(o=/^([a-z_][a-z_\d]*)/i.exec(l)))throw new Error("[_.sprintf] huh?");for(i.push(o[1]);""!==(l=l.substring(o[0].length));)if(null!==(o=/^\.([a-z_][a-z_\d]*)/i.exec(l)))i.push(o[1]);else{if(null===(o=/^\[(\d+)\]/.exec(l)))throw new Error("[_.sprintf] huh?");i.push(o[1])}r[2]=i}else u|=2;if(3===u)throw new Error("[_.sprintf] mixing positional and named placeholders is not (yet) supported");t.push(r)}n=n.substring(r[0].length)}return t},t}(),g={VERSION:"2.4.0",isBlank:function(e){return null==e&&(e=""),/^\s*$/.test(e)},stripTags:function(e){return null==e?"":n(e).replace(/<\/?[^>]+>/g,"")},capitalize:function(e){return e=null==e?"":n(e),e.charAt(0).toUpperCase()+e.slice(1)},chop:function(e,r){return null==e?[]:(e=n(e),r=~~r,r>0?e.match(new RegExp(".{1,"+r+"}","g")):[e])},clean:function(e){return g.strip(e).replace(/\s+/g," ")},count:function(e,r){if(null==e||null==r)return 0;e=n(e),r=n(r);for(var t=0,u=0,i=r.length;;){if(u=e.indexOf(r,u),-1===u)break;t++,u+=i}return t},chars:function(e){return null==e?[]:n(e).split("")},swapCase:function(e){return null==e?"":n(e).replace(/\S/g,function(e){return e===e.toUpperCase()?e.toLowerCase():e.toUpperCase()})},escapeHTML:function(e){return null==e?"":n(e).replace(/[&<>"']/g,function(e){return"&"+f[e]+";"})},unescapeHTML:function(e){return null==e?"":n(e).replace(/\&([^;]+);/g,function(e,r){var t;return r in s?s[r]:(t=r.match(/^#x([\da-fA-F]+)$/))?n.fromCharCode(parseInt(t[1],16)):(t=r.match(/^#(\d+)$/))?n.fromCharCode(~~t[1]):e})},escapeRegExp:function(e){return null==e?"":n(e).replace(/([.*+?^=!:${}()|[\]\/\\])/g,"\\$1")},splice:function(e,n,r,t){var u=g.chars(e);return u.splice(~~n,~~r,t),u.join("")},insert:function(e,n,r){return g.splice(e,n,0,r)},include:function(e,r){return""===r?!0:null==e?!1:-1!==n(e).indexOf(r)},join:function(){var e=a.call(arguments),n=e.shift();return null==n&&(n=""),e.join(n)},lines:function(e){return null==e?[]:n(e).split("\n")},reverse:function(e){return g.chars(e).reverse().join("")},startsWith:function(e,r){return""===r?!0:null==e||null==r?!1:(e=n(e),r=n(r),e.length>=r.length&&e.slice(0,r.length)===r)},endsWith:function(e,r){return""===r?!0:null==e||null==r?!1:(e=n(e),r=n(r),e.length>=r.length&&e.slice(e.length-r.length)===r)},succ:function(e){return null==e?"":(e=n(e),e.slice(0,-1)+n.fromCharCode(e.charCodeAt(e.length-1)+1))},titleize:function(e){return null==e?"":(e=n(e).toLowerCase(),e.replace(/(?:^|\s|-)\S/g,function(e){return e.toUpperCase()}))},camelize:function(e){return g.trim(e).replace(/[-_\s]+(.)?/g,function(e,n){return n?n.toUpperCase():""})},underscored:function(e){return g.trim(e).replace(/([a-z\d])([A-Z]+)/g,"$1_$2").replace(/[-\s]+/g,"_").toLowerCase()},dasherize:function(e){return g.trim(e).replace(/([A-Z])/g,"-$1").replace(/[-_\s]+/g,"-").toLowerCase()},classify:function(e){return g.capitalize(g.camelize(n(e).replace(/[\W_]/g," ")).replace(/\s/g,""))},humanize:function(e){return g.capitalize(g.underscored(e).replace(/_id$/,"").replace(/_/g," "))},trim:function(e,r){return null==e?"":!r&&t?t.call(e):(r=c(r),n(e).replace(new RegExp("^"+r+"+|"+r+"+$","g"),""))},ltrim:function(e,r){return null==e?"":!r&&i?i.call(e):(r=c(r),n(e).replace(new RegExp("^"+r+"+"),""))},rtrim:function(e,r){return null==e?"":!r&&u?u.call(e):(r=c(r),n(e).replace(new RegExp(r+"+$"),""))},truncate:function(e,r,t){return null==e?"":(e=n(e),t=t||"...",r=~~r,e.length>r?e.slice(0,r)+t:e)},prune:function(e,r,t){if(null==e)return"";if(e=n(e),r=~~r,t=null!=t?n(t):"...",e.length<=r)return e;var u=function(e){return e.toUpperCase()!==e.toLowerCase()?"A":" "},i=e.slice(0,r+1).replace(/.(?=\W*\w*$)/g,u);return i=i.slice(i.length-2).match(/\w\w/)?i.replace(/\s*\S+$/,""):g.rtrim(i.slice(0,i.length-1)),(i+t).length>e.length?e:e.slice(0,i.length)+t},words:function(e,n){return g.isBlank(e)?[]:g.trim(e,n).split(n||/\s+/)},pad:function(e,r,t,u){e=null==e?"":n(e),r=~~r;var i=0;switch(t?t.length>1&&(t=t.charAt(0)):t=" ",u){case"right":return i=r-e.length,e+o(t,i);case"both":return i=r-e.length,o(t,Math.ceil(i/2))+e+o(t,Math.floor(i/2));default:return i=r-e.length,o(t,i)+e}},lpad:function(e,n,r){return g.pad(e,n,r)},rpad:function(e,n,r){return g.pad(e,n,r,"right")},lrpad:function(e,n,r){return g.pad(e,n,r,"both")},sprintf:h,vsprintf:function(e,n){return n.unshift(e),h.apply(null,n)},toNumber:function(e,n){return e?(e=g.trim(e),e.match(/^-?\d+(?:\.\d+)?$/)?l(l(e).toFixed(~~n)):0/0):0},numberFormat:function(e,n,r,t){if(isNaN(e)||null==e)return"";e=e.toFixed(~~n),t="string"==typeof t?t:",";var u=e.split("."),i=u[0],l=u[1]?(r||".")+u[1]:"";return i.replace(/(\d)(?=(?:\d{3})+$)/g,"$1"+t)+l},strRight:function(e,r){if(null==e)return"";e=n(e),r=null!=r?n(r):r;var t=r?e.indexOf(r):-1;return~t?e.slice(t+r.length,e.length):e},strRightBack:function(e,r){if(null==e)return"";e=n(e),r=null!=r?n(r):r;var t=r?e.lastIndexOf(r):-1;return~t?e.slice(t+r.length,e.length):e},strLeft:function(e,r){if(null==e)return"";e=n(e),r=null!=r?n(r):r;var t=r?e.indexOf(r):-1;return~t?e.slice(0,t):e},strLeftBack:function(e,n){if(null==e)return"";e+="",n=null!=n?""+n:n;var r=e.lastIndexOf(n);return~r?e.slice(0,r):e},toSentence:function(e,n,r,t){n=n||", ",r=r||" and ";var u=e.slice(),i=u.pop();return e.length>2&&t&&(r=g.rtrim(n)+r),u.length?u.join(n)+r+i:i},toSentenceSerial:function(){var e=a.call(arguments);return e[3]=!0,g.toSentence.apply(g,e)},slugify:function(e){if(null==e)return"";var r="ąàáäâãåæăćęèéëêìíïîłńòóöôõøśșțùúüûñçżź",t="aaaaaaaaaceeeeeiiiilnoooooosstuuuunczz",u=new RegExp(c(r),"g");return e=n(e).toLowerCase().replace(u,function(e){var n=r.indexOf(e);return t.charAt(n)||"-"}),g.dasherize(e.replace(/[^\w\s-]/g,""))},surround:function(e,n){return[n,e,n].join("")},quote:function(e,n){return g.surround(e,n||'"')},unquote:function(e,n){return n=n||'"',e[0]===n&&e[e.length-1]===n?e.slice(1,e.length-1):e},exports:function(){var e={};for(var n in this)this.hasOwnProperty(n)&&!n.match(/^(?:include|contains|reverse)$/)&&(e[n]=this[n]);return e},repeat:function(e,r,t){if(null==e)return"";if(r=~~r,null==t)return o(n(e),r);for(var u=[];r>0;u[--r]=e);return u.join(t)},naturalCmp:function(e,r){if(e==r)return 0;if(!e)return-1;if(!r)return 1;for(var t=/(\.\d+)|(\d+)|(\D+)/g,u=n(e).toLowerCase().match(t),i=n(r).toLowerCase().match(t),l=Math.min(u.length,i.length),o=0;l>o;o++){var a=u[o],c=i[o];if(a!==c){var s=parseInt(a,10);if(!isNaN(s)){var f=parseInt(c,10);if(!isNaN(f)&&s-f)return s-f}return c>a?-1:1}}return u.length===i.length?u.length-i.length:r>e?-1:1},levenshtein:function(e,r){if(null==e&&null==r)return 0;if(null==e)return n(r).length;if(null==r)return n(e).length;e=n(e),r=n(r);for(var t,u,i=[],l=0;l<=r.length;l++)for(var o=0;o<=e.length;o++)u=l&&o?e.charAt(o-1)===r.charAt(l-1)?t:Math.min(i[o],i[o-1],t)+1:l+o,t=i[o],i[o]=u;return i.pop()},toBoolean:function(e,n,t){return"number"==typeof e&&(e=""+e),"string"!=typeof e?!!e:(e=g.trim(e),r(e,n||["true","1"])?!0:r(e,t||["false","0"])?!1:void 0)}};g.strip=g.trim,g.lstrip=g.ltrim,g.rstrip=g.rtrim,g.center=g.lrpad,g.rjust=g.lpad,g.ljust=g.rpad,g.contains=g.include,g.q=g.quote,g.toBool=g.toBoolean,"undefined"!=typeof exports&&("undefined"!=typeof module&&module.exports&&(module.exports=g),exports._s=g),"function"==typeof define&&define.amd&&define("underscore.string",[],function(){return g}),e._=e._||{},e._.string=e._.str=g}(this,String);
\ No newline at end of file