* Migrated project to Gradle 2.2.1 in order to get FindBugs 3 support which is needed for Java 8
* Fixed JavaDoc errors
* Fixed PMD errors (useless parentheses)
* Deactivated creation of github pages (not compatible with Gradle 2)
Merge pull request #1 from zalando/gradle-2

* Migrated project to Gradle 2.2.1 in order to get FindBugs 3 support wh...