Added logs
Logger Imports
Added context to messages
debug
Move context
Initial second idea
WorkContext added
Added preprocessor event dispatcher
NN
NN
Merge branch 'exec-only'

* exec-only:
  Added preprocessor event dispatcher
  WorkContext added
  Initial second idea
NN
Old base executor rollback
BaseWorker rollback
Do not next filter if no messages
Allow Executors to modify messages
try monolog 1.5
Added new Monolog logger factory
Removed lf4php dependecy
Wrap log methods