add manager class
CDN driver interface
basic CDN manager class
start a file CDN driver
use short ioc name
implement cdn driver interface
setup some classes
sort out the CDN manager class
add some notes to file driver
add file driver test class
pass app to filedriver constructor
test file driver base path
test file driver parse file
add symfony's file component to dev reqs
test filename generator
test versionname
add path_compile function
basic file driver functionality
add cdn namespace
Merge master into feature/cdn

Conflicts:
	composer.json