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Changes between Initial Version and Version 1 of Ticket #1329

initial	v1
9	9	box3d_extent will be deprecated and possibly removed, though I think that might break some apps removing it. I have one to test that theory.
10	10
	11	deprecate box2d (possibly get rid of it). I think there is too much code out there that relies on box2d that getting rid of it is a pipe dream the moment. So we might want to deprecate it now, remove it from the docs, and encourage people to not use it in a non-violent demonstration of disapproval.
	12
11	13	1) ST_Extent returns box3d just like ST_3DExtent currently does.
12	14	2) Both ST_3DExtent and ST_Extent be changed to strip the SRID of the improved box3d type by default, with an optional argument -- keep_srid (defaulted to false) for those like strk who really want it and want to override the behavior to make it true.