use ccache for ARMv6_hf
fix splint problems

it should be noted that the format specifiers with S-ending are not
splintable!
see comments in code there.

fixes #93
include types_api.h / coding style
Merge pull request #110 from Garonenur/uword_splint

fix splint problems
Merge pull request #111 from gordon/ccache

use ccache for ARMv6_hf
Merge pull request #112 from gordon/boolmatrix

include types_api.h / coding style