RELEASING.md

Releasing

1. Update POM_VERSION_NAME to the new version X.Y.Z in permission/gradle.properties.
2. Update version name in README.md
3. Add change log in CHANGELOG.md
4. Execute git commit -m "Prepare for release X.Y.Z" (where X.Y.Z is the new version).
5. Execute ./gradlew clean bintrayUpload.
6. Execute git tag v_X.Y.Z" (where X.Y.Z is the new version)
7. Execute git push && git push --tags