Update 10.23.2013 0957

cmp_speed.cc:		Small changes for testing purposes
speed_test.cc:		Changes for acc/speed testing
*_fast_3d.cc:		Finalized forumlation of the algorithm. This
					wrapper is only valid for 3d_grids and with
					interpolation parameters of pchip in zeroth
					and bi-linear in the first/second dimensions.