Scrypt-jane support based on rmdavidsons's patch
misc: Don't track jansson_config.h
scrypt-jane: move scrypt-jane.cl to dir kernel.

It should be renamed 'keccak' or 'keccak-author', since keccak (SHA-3)
seems to be the only supported hash function.
scrypt-jane: remove USE_SCRYPT check (it is not used).
Add Gridseed support
Update libusb to v1.0.6
Allow disable gpus
Allow change pool name
Display accepts+rejects as number too
Dont show gpu management menu of no gpu
Put back asic api support
Ops, typo fix...
Remove unnecessary chars from statline
Allow disable asic devices
Add missing code for scrypt-jane

Ref #10
Merge branch 'gridseed'
Merge branch 'scrypt-jane'

Conflicts:
	configure.ac
	driver-opencl.c
	miner.h
	ocl.c
	sgminer.c