Major: Added .idea folder for Project in IntelliJ IDEA IDE
FIX disabled button not working in FF + IE

buttons are just visually disabled via JS for now
clean up : removed update+finish btn references
FIX #3, FIX #11 should work with all RelationList
Removed save+finish btn
Minor: Small formatting and preparation for translation
Merge commit '2bfd2a83090cd9aea2a4ea87777aa6f432f744ab'

Conflicts:
	code/GridFieldBulkImageUpload_Request.php
	code/GridFieldBulkManager_Request.php