Satradix: add Satish radix skeleton files, compiling
Merge branch 'master' into satradix
Satradix: add experimental histogram kernel
Satradix: add permute kernel skeleton
Satradix: add local sort skeleton
Satradix: local sort working
Satradix: separate value from key in localsort kernel

Add comment remembering that scan can be improved.
Satradix: specify radix constants in kernel
Satradix: add proper histogram kernel (in progress)
Satradix: add proper histogram kernel (finished, not tested)
Merge branch 'master' into satradix
Satradix: add scatter kernel + double-buffered process
Satradix: fix typos in satradix.cl
Satradix: fix some bugs in histogram, but offsets not yet working
Satradix: tentative fix on offset calculation

Not yet working
Satradix: working histogram

Working but not in the most efficient way.
Satradix: replace global_id by local_id in histogram and scatter krnls
Satradix: fix bug in histogram kernel

Accessing out-of-bounds digit array when RADIX > array_size
Merge branch 'satradix'

Conflicts:
	src/sort/clo_sort_satradix.c
	src/sort/clo_sort_satradix.cl
	src/sort/clo_sort_satradix.h