Change dataprovider tags variable into an array

Change dataprovider tags variable into an array instead of jquery object to keep order of dataprovider array. Got rid of .add() as jquery states:

http://api.jquery.com/add/
"Do not assume that this method appends the elements to the existing collection in the order they are passed to the .add() method"

dist/js/bootstrap-multiselect.js

@@ -1067,7 +1067,7 @@
         dataprovider: function(dataprovider) {
             var optionDOM = "";
             var groupCounter = 0;
-            var tags = $(''); // create empty jQuery array
+            var tags = []; // create empty array
 
             $.each(dataprovider, function (index, option) {
                 var tag;
@@ -1094,9 +1094,10 @@
                         title: option.title,
                         selected: !!option.selected
                     });
+                    
+                    tags.push(tag);
                 }
 
-                tags = tags.add(tag);
             });
             
             this.$select.empty().append(tags);