Incomplete - task : rewrite memory repository implementation
Merged in master branch.
Incomplete - task : rewrite memory repository implementation
Merge branch 'master' into nosql

Conflicts:
	everest/repositories/nosqldb/__init__.py
	everest/repositories/nosqldb/repository.py
	everest/repositories/nosqldb/session.py
	everest/representers/traversal.py
Incomplete - task : rewrite memory repository implementation
Completed Task : rewrite memory repository implementation.
Merge branch 'master' into nosql
Brought coverage back to 100% with the new memory session
implementation.
Removed the ill-conceived lazy URL loading feature.