Reducing the scope of pthread_rwlock_unlock() during LSI deletion to prevent dead-locks with PKT_IN processing (of other LSIs). Fixes #31
Updating CHANGES file
Merge remote-tracking branch 'origin/devel-0.4' into devel-0.5

Conflicts:
	CHANGES
Merge remote-tracking branch 'origin/devel-0.5' into devel-0.6