Fix 3.3 release bugs that's related to EV & CM thumbnail

Add missing Drupal theme setting path in Drupal javascript setting.
Change epe_ev_search_view's thumbnail php code.  The thumbnail php code
is targeting the wrong field and using the wrong image style.
Add new update fuction to epe_ev to update epe_ev_search_view
Merge pull request #16 from ooiepe/epedev-3.3-ay-bugfixs

Fix EV & CM thumbnails