Merge pull request #2 from agiuliano/master

Composer already install the dev packages
added MIT license
added alpha blending to the image
added self-update to composer
Added last stable version badge
Fixed image for version and Badger::filterStableVersions
fixed try-catch
cleaned routes
cleaned ImageCreator
Merge pull request #3 from liuggio/master

minor fixies
reverted try catch order
changed route to /stable.png
Merge pull request #5 from liuggio/imageCreator

cleaned ImageCreator, template images
added latest stable version
renamed lastStable( to stable(, adde try into the controller
new favicon based on PUGX logo
Update README.md
- changed version routing: last_stable.png becomes version.png
- refactoring on BadgeController
- prepared method ImageCreator::createUnstableImage
Merge pull request #13 from leopro/master

some refactoring
minor fix