3.0 preview (#7)

* Migrate to Polymer 3

* Code clean and update

.travis.yml

@@ -3,7 +3,6 @@ notifications:
 language: node_js
 sudo: false
 node_js: stable
-before_script:
-  - npm install -g polymer-cli
-  - polymer install
+before_script: npm install -g polymer-cli
 script: npm run lint
+

classes.js

@@ -0,0 +1,21 @@
+/**
+ @license
+ Copyright (c) FabricElements. All rights reserved.
+
+ skin-styles Styles
+ */
+import './classes/buttons.js';
+import './classes/typography.js';
+import './classes/grid.js';
+import './classes/bootstrap.js';
+
+const styleElement = document.createElement('dom-module');
+styleElement.innerHTML = `
+<template>
+  <!--suppress CssInvalidPseudoSelector -->
+  <!--suppress CssUnresolvedCustomProperty -->
+  <!--suppress CssUnresolvedCustomPropertySet -->
+  <style include="skin-typography skin-buttons"></style>
+</template>
+`;
+styleElement.register('skin-styles');

classes/animate.html

@@ -1,6 +1,6 @@
 <!--
 @license
-Copyright (c) 2017 FabricElements. All rights reserved.
+Copyright (c) FabricElements. All rights reserved.
 
 `animate`
 Animate

classes/bootstrap.html → classes/bootstrap.js

@@ -1,15 +1,7 @@
-<!--
-@license
-Copyright (c) 2017 FabricElements. All rights reserved.
+const $_documentContainer = document.createElement('template');
+$_documentContainer.setAttribute('style', 'display: none;');
 
-`skin-styles-bootstrap` is a supercharged Bootstrap grid.
-https://github.com/twbs/bootstrap/blob/v4-dev/dist/css/bootstrap.css
-
-@group Skin Styles
-@demo demo/grid.html bootstrap
--->
-
-<style>
+$_documentContainer.innerHTML = `<style>
   .align-baseline {
     vertical-align: baseline !important;
   }
@@ -3755,4 +3747,23 @@
       display: none !important;
     }
   }
-</style>
+</style>`;
+
+document.head.appendChild($_documentContainer.content);
+
+/**
+ @license
+ Copyright (c) FabricElements. All rights reserved.
+
+ `skin-styles-bootstrap` is a supercharged Bootstrap grid.
+ https://github.com/twbs/bootstrap/blob/v4-dev/dist/css/bootstrap.css
+
+ @group Skin Styles
+ @demo demo/grid.html bootstrap
+ */
+/*
+  FIXME(polymer-modulizer): the above comments were extracted
+  from HTML and may be out of place here. Review them and
+  then delete this comment!
+*/
+;