made lab compatible
added parallel subtraction and geq functions
Merge branch 'cuda-branch' of https://github.com/swinkleb/cuda_rsa into cuda-branch
improved usability
added gcd function and modified helper functions as necessary (everything still untested)
fixes to gcd and helper functions; everything seems to be in working order
added John's gcd kernel
won't compile yet
minor adjustment to usage info
Merge branch 'cuda-branch' of https://github.com/swinkleb/cuda_rsa into cuda-branch
Added u1024bit_t struct.
added isGreaterThanOne function and modified kernel to correctly call gcd
Merge branch 'cuda-branch' of https://github.com/swinkleb/cuda_rsa into cuda-branch
Merge branch 'cuda-branch' of https://github.com/swinkleb/cuda_rsa into cuda-branch
gcd can now handle 2D blocks; parallelized isGreaterThanOne
added parallel subtraction and geq functions
gcd can now handle 2D blocks; parallelized isGreaterThanOne
Merge branch 'cuda-branch' of https://github.com/swinkleb/cuda_rsa into cuda-branch

Conflicts:
	Makefile
	gcd.h
	gcdCuda.h
	io.h
	main.c
	main.h
	rsa.h