2006-03-01	Suvrit Sra <suvrit@cs.utexas.edu>

	* driver.cc (load) added code to allow user to load col_coord
		class 

	* col_coord.h New class
	* col_coord.cc Code for col_coord class added. A derivative of CRS
	* col_coord.cc (load_fast) function written for first time.
	* col_coord.cc (load) temporararily written to call load_fast