fixes scholrly/neo4django#199
Use url to retreive the relationship to remove
Added soft regex escaping to allow query using unicode
Merge pull request #203 from Pirhoo/master

fixes scholrly/neo4django#199
Update relationship_tests.py
Update relationship_tests.py
Update relationship_tests.py
Merge branch 'master' of github.com:scholrly/neo4django
Merge branch 'master' of https://github.com/tonjo/neo4django into tonjo-master
Corrected test_relationship_filter_many_to_many().
Update requirements to include Django 1.5+.