Merge branch 'release-1.3.1' into dev
Building snapshots again.
Add versions-maven-plugin 2.1.
Update retrofit to 1.5.1.

- https://github.com/square/retrofit/blob/master/CHANGELOG.md
Update okhttp to 1.6.0.

- https://github.com/square/okhttp/blob/master/CHANGELOG.md#version-160
Merge branch 'fix-1.3.2' into dev
Require Java 1.7.
Update retrofit to 1.6.1, requires okhttp-urlconnection.

- https://github.com/square/retrofit/blob/master/CHANGELOG.md#version-161-2014-07-02
- Update okhttp to 2.0.0: https://github.com/square/okhttp/blob/master/CHANGELOG.md#version-200
Use OkUrlFactory for executing OAuth requests.
Easier RestAdapter customization, add lots of javadoc.

- Also keep around RestAdapter instances.
Update test access token.
Prepare version 1.4.0.
Rename to "tvtag Java API Wrapper".
Update README.
Change log for 1.4.0.
Merge branch 'release-1.4.0'