added an ARM specific library
build constraint directives allowing compilation on linux/386, linux/arm
Merge branch 'master' of github.com:nytlabs/streamtools
changed build constraint to refer to 'arm' instead of 'linux,arm'
Merge pull request #382 from jacqui/master

Fix for cross-compiling on linux/arm and the rest of the architectures
Merge branch 'hwio' of https://github.com/mikedewar/streamtools

Conflicts:
	st/library/library.go
Merge branch 'master' of github.com:nytlabs/streamtools into hwio