Big refactor. CrowdTask is now JobConfiguration. CSV and Template are saved separately in Session. Combined MechanicalTurkService and CFService into Job. Included htmlsimpledom via composer.json.
Added validation rules (errors are shown in submit tab)
Added toHTML() to JobConfiguration.
Prepared job retrieval: added command:retrievejobs for using commandline, made changes to mturk to retrieve full objects and to crowdflower to fix judgment glitch. Unit_id is now in relation_direction/relation_direction_multiple template to propagate ID's.
Merge branch 'jelle' of https://github.com/khamkham/crowd-watson into arne

Conflicts:
	app/controllers/PostProcessController.php
	app/models/JobConfiguration.php
Post merge
Finalizing merge