Cross build to sbt 0.13 and 1.0

[marcospereira]

Fixes #15.

Related tasks

After merging and release a new version of play-enhancer, we need to update the following PRs:

• [ ] playframework/play-java-fileupload-example#37
• [ ] playframework/play-java-starter-example#46
• [ ] playframework/play-java-jpa-example#44