Task 6 add composer support (+ refactored the whole logging subsystem)

Integrated composer support by simply adding the lookup for vendor/autoload.php to DoozR's bootstrapping process. The whole logging subsystem was refactored - is here misplaced due to a wrong push of changes to the wrong branch ... bla bla bla ... its late ... and i'm to lazy to undo this :) and the best thing is ... nobody cares cause this is my repo :p