Matsumoto Taichi

Results 2 issues of Matsumoto Taichi

Fix for https://github.com/tumblr/kanvas-ios/issues/33 This PR fixes an issue that the rendered result is off-centered when using the Metal rendering pipeline. The root problem is the frame we receive from `AVCaptureVideoDataOutput`...

I've added a view to views/releases.py so that we can get uploaded packages from web and pip.