add code climate badge
adapt Rakefile to submit to correct build service project in maintenance branch SLE-12-GA
Revert "adapt Rakefile to submit to correct build service project in maintenance branch SLE-12-GA"

This reverts commit 6f9d73ec2535b9643194ff34899c04099733384b.
Merge pull request #297 from yast/code_climate_badge

add code climate badge
fixed tests
added .travis.yml
README.md - added build status badges