Import README from sfAssetsLibraryPlugin
Import README from sfAssetsLibraryPlugin

git-svn-id: 7a14bedf71710754a891c044d3336626395ebc01@31173 ee427ae8-e902-0410-961c-c3ed070cd9f9

Symfony-Plugins/sfDoctrineAssetsLibraryPlugin,Symfony-Plugins/sfDoctrineAssetsLibraryPlugin