add models, migrations and init_master_db command to webapp
added new line at the end of file
add py.test setup with support for coverage
add django admin interface and __unicode__ function to models
fix missing unique_together on option_collection and datasource
Merge pull request #5 from mozilla/django-models-migration

add models, migrations and init_master_db command to webapp
Merge pull request #6 from mozilla/py.test-setup

add py.test setup with support for coverage
merged .gitignore changes, added .swp for vi/vim