Modified tests for latest Django version and updated gitignore for Mac
Added tests for schools and boundary

Introduced a new folder called “tests” under schools to better split
tests across files.
More unit tests

Added tests with and without geometry param. A couple of negative
tests..
Added a basic users test

Modified settings.py to use the DiscoverRunner instead of
NoDbTestRunner. Note that this will break the schools tests most
likely. Need to roll back.
More unit tests work..

Organized it into folders etc..
checking if user is authenticated
More changes to tests..

Added a few more tests..
cleanup test_settings work-flow
remove file accidentally added during rebase
fix bug where volunteer_activities property for Users was not read-only, tests now all pass.