Adding experimental osx travis-ci support
- https://github.com/myint-test-org/test-osx
- https://github.com/travis-ci/travis-ci/issues/216
Replacing openjdk8 with oraclejdk8 and adding scala 2.11
OS doesn't seem to have an effect. But java 6 and 7 are now tested, too
Removing OS support  for now
Merge pull request #257 from sbt/wip/macosx-travis-testing

Adding experimental osx travis-ci support