snf-django-lib: PEP-8 style fixes
snf-django-lib: ReRaise AstakosClientExceptions as API Faults
snf-django-lib: Fault Exceptions now have code attr
PEP8 styling fixes in faults.py
Move astakos lib from snf-common to snf-django-lib
Move parsedate module to snf_django
Move common test code to snf_django.lib.testing
Create 'snf-django-lib'
Create 'snf-django-lib', common Synnefo library for django.
Move cloud faults to 'snf_django.lib.api.faults'
Gather all faults from all synnefo projects into common'snf_django.lib.api.faults'.
Implement single decorator for handling API calls
Create a single decorator for API methods to be used be accross allsynnefo. This decorator does the following: