Fixed hash-tags

Closes #337

app/js/services.js

@@ -2926,7 +2926,7 @@ angular.module('myApp.services', [])
     emojiMap[emojiData[emojiCode][0]] = emojiCode;
   }
 
-  var regExp = new RegExp('((?:(ftp|https?)://|(?:mailto:)?([A-Za-z0-9._%+-]+@))(\\S*\\.\\S*[^\\s.;,(){}<>"\']))|(\\n)|(' + emojiUtf.join('|') + ')|(^|\s)(#[A-Za-z0-9\_\.]{4,20})', 'i');
+  var regExp = new RegExp('((?:(ftp|https?)://|(?:mailto:)?([A-Za-z0-9._%+-]+@))(\\S*\\.\\S*[^\\s.;,(){}<>"\']))|(\\n)|(' + emojiUtf.join('|') + ')|(^|\\s)(#[A-Za-z0-9\_\.]{4,20})', 'i');
   var youtubeRegex = /(?:https?:\/\/)?(?:www\.)?youtu(?:|.be|be.com|.b)(?:\/v\/|\/watch\\?v=|e\/|\/watch(?:.+)v=)(.{11})(?:\&[^\s]*)?/;
 
   return {