adding framework to check/update crash_obj

repeat_scrubber: takes strings about to be used in query and scrubs out
repeats.

Uses an array structure to validate what to remove

		item1	item2	item3
	region1	 [x]		 [x]
	region2	 [x]	 [x]	 [x]	del region2
	region3	 [x]
		del item1