Turn off autocorrect and autocapitilze

On e.g. mobile devices, it's more user friendly to turn off autocorrect in input fields. This patch adds the attributes autocorrect, autocapitilize and spellcheck. See also:

http://davidwalsh.name/disable-autocorrect

Author: dirkpostma

select2.js

@@ -1702,7 +1702,7 @@ the specific language governing permissions and limitations under the Apache Lic
                 "<input class='select2-focusser select2-offscreen' type='text'/>",
                 "<div class='select2-drop select2-display-none'>" ,
                 "   <div class='select2-search'>" ,
-                "       <input type='text' autocomplete='off' class='select2-input'/>" ,
+                "       <input type='text' autocomplete='off' autocorrect='off' autocapitilize='off' spellcheck='false' class='select2-input'/>" ,
                 "   </div>" ,
                 "   <ul class='select2-results'>" ,
                 "   </ul>" ,
@@ -2194,7 +2194,7 @@ the specific language governing permissions and limitations under the Apache Lic
                 "    <ul class='select2-choices'>",
                 //"<li class='select2-search-choice'><span>California</span><a href="javascript:void(0)" class="select2-search-choice-close"></a></li>" ,
                 "  <li class='select2-search-field'>" ,
-                "    <input type='text' autocomplete='off' class='select2-input'>" ,
+                "    <input type='text' autocomplete='off' autocorrect='off' autocapitilize='off' spellcheck='false' class='select2-input'>" ,
                 "  </li>" ,
                 "</ul>" ,
                 "<div class='select2-drop select2-drop-multi select2-display-none'>" ,