added isset checks for $_POST vars when saving options to avoid undefined index php warning
removed reliance on $bp global in feed check ($bp depreciated in BP 1.6), and fixed undefined reference to $protection
replaced bp_is_current_action with new BP 1.6 equivalent for $bp->action_variable[0], bp_is_action_variable()
Merge pull request #2 from wchest/wordpress3.5_fix

BuddyPress 1.6 Fixes and Warning Removal