Added image compression plugin.
Merge pull request #1 from mozilla/img-compression

Image compression
Added global strict mode.
Merge pull request #2 from mozilla/strict

Add global strict mode
Add IRC configuration for Travis CI
Updated readme to YAML-based configuration.
Merge pull request #4 from mozilla/readme

Update readme to YAML-based configuration
Update README.md to use the right repo for build status
Moved cache loading into request handler.