adding support for revision in routes
updating routes_test to match new routes, add media_types_test
remove unnecessary binding in let clause
updating sandbox to work with new routes
first pass at supporting ?fill=<color> in thumbnail params
fixing headers. functional programming is hard.
sort query options in filename and add :else clause to fallback to current filename
fixed routes_test, updated media_types_test to have options, and added tests for query_options
add query input for sandbox, have background for test images (to show transparency)
renaming stuff
Merge pull request #12 from Wikia/PLATFORM-423

filled background