Renamed some variables
Some minor refactorings
Added some documentations
increased build-tools to 19.1
Merge branch 'solving_too_complex_methods' of github.com:ironjan/metal-only into fixing_travis
more output in travis build
Android as first class citizen on Travis CI
some more fun with travis
removed licenses
downgrading build-tools
upgrading build-tools,simplifying travis-file
added licenses tag