change mode to uint, fix #4
add new x86 instructions
rename, fixes #3
update constants, passes tests for 2.1
Add a version test
switch from hardcoded constants to use the preprocessor
added sanity checks for REG GRP and INS constants
update x86 constants for 2.1rc1
switch to pkg-config for #include
move almost all engine constants to use preprocessor
add DIET constants
Explicit Close() test
update internal signature for cs_close()
minor refactoring in version tests
typo in CS_SUPPORT_DIET
note move to 2.1 in master
more fully support diet mode
tests passing 2.1
Merge branch 'next'

Conflicts:
	README.md