Add FlatFile storage support
Add FlatFileDriver
Lock meta file before reading and writing
Merge pull request #91 from henrikbjorn/master

add __toString to queue interface
Merge pull request #87 from Baachi/flat-file-storage

Flat file storage
Move documentation into directory as it will be the same as the version and not seperately updated
fix issues for rtfd
Update README.md
fix doctrinedriver
Make sure commit is issued even when no message have been found to avoid locking issues
Fix offset in DoctrineDriver peekQueue
fix branch alias
remove old and use a pip package for the theme instead
fix requirements .txt