Major LTR Site improvements:

- implemented config generation, launches and launch history
- models refactored
- UI refactored
- middleware added: all saved models are automatically attached to Folder
- xml generation moved from all the objects to BaseObject and to templates
- added view decorators limiting HTTP access methods
- code refactored in order to satisfy PEP8
- object autonaming implemented
- added PEP8 style check

Serialization not implemented yet.

Change-Id: I4852480458ec089359eca0ff26607e4bb8cd302d