Merge pull request #1 from sokanu/master

Updating from upstream
Requests stupidly seve a static image
Added ability to modify width and height of requested image
Added quality modifier
Moved image modifiers to a separate file
Added more test resources
Added incredibly rudimentary file uploader
Using MEDIA_ROOT as destination folder instead of alternative approach
Only accept allowed extension types
Added missing pillow dependency
Uploaded images now tracked in database and have a unique identifier
Removed unused dependencies
Image request url now requires image identifier
Merge pull request #1 from jskopek/master

Merging local changes