Make: fix linebreaks in buildtest
Import embunit sources
Adapt embunit for RIOT
Create unittest application
tests: added README.md for test_float
Merge pull request #998 from OlegHahm/test_float_readme

tests: added README.md for test_float
Merge pull request #991 from Kijewski/fix-buildtest-newlines

Make: fix linebreaks in buildtest
Merge pull request #381 from authmillenon/unittests

Unittests via embUnit