Rename Citation class

lib/Reference.js

@@ -1,13 +1,13 @@
 
 const _ = require('lodash')
 
-class Citation {
-  static mergeAll (citations) {
-    return _(citations)
+class Reference {
+  static mergeAll (references) {
+    return _(references)
       .tail()
       .reduce(
         (merged, citation) => merged.merge(citation),
-        _.head(citations)
+        _.head(references)
       )
   }
 
@@ -16,16 +16,16 @@ class Citation {
     this.pages = pages
   }
 
-  merge (citation) {
-    if (this.document === citation.document) {
-      return new Citation(
+  merge (reference) {
+    if (this.document === reference.document) {
+      return new Reference(
         this.document,
-        _(this.pages).union(citation.pages).sortBy().value()
+        _(this.pages).union(reference.pages).sortBy().value()
       )
     } else {
-      throw new Error(`Incompatible documents: "${this.document}" and "${citation.document}".`)
+      throw new Error(`Incompatible documents: "${this.document}" and "${reference.document}".`)
     }
   }
 }
 
-module.exports = Citation
+module.exports = Reference