Custom transformations should throw on main thread.
Merge pull request #355 from square/dimitris/throw-to-main

Custom transformations should throw on main thread.
Update readme with proguard instructions.
Merge pull request #356 from square/dimitris/update-readme

Update readme with proguard instructions.
Add Travis CI build.
Merge pull request #357 from square/jw/travis

Add Travis CI build.
Use OkHttp 1.3.0.
Merge pull request #358 from square/dimitris/faulty-image

Use OkHttp 1.3.0.
Catch OOM.
Merge pull request #359 from square/dimitris/oom

Catch OOM.
Merge remote-tracking branch 'upstream/master'