Try using gradle.
Add travis.
Merge branch 'gradle'

* gradle:
  Add travis.
  Try using gradle.
Rename.
Try uploading.
Add link to travis-ci.
Try getting version from the git tag.
Merge branch 'master' into stable

* master:
  Try getting version from the git tag.
  Add link to travis-ci.
  Try uploading.
  Rename.
  Add travis.
  Try using gradle.