Add javascript confirm on admin blog delete link
Add tagging model test and implementation
Initial tagging UI implementation
Add selected listener when adding tag
 - remove already selected tag from source
 - append tag to the ui.
Persists tags in blog create form
Refactor and tweak tagging feature
Fixes on tagging feature
Fixes on tagging feature
Refactor tagging feature and add tagging to blog edit
Refactor appendTag
Major refactoring on typeahead_tag.js
Refactor typeahead_tag.js and add initial remove tag code
Add basic remove tag functionality
Refactor remove tag
Merge branch 'tag_feature' into admin_panel