Added Resources page.

Added Event, SubEvent, and Note models, for the Resources page.
Added Event, SubEvent, and Note to the Resources view.
Added to Resources.html tempalte.
Moved tests/ to tests_all/ so there is less ambiguity, also renamed
/tests/tests.py to /tests/tests_main.py.
Removed contenttypes from .json, because they were causing loaddata
errors.
Added Resources Admins

Added SubEventAdmin and EventAdmin to admins.py, with list_displays and
orderings.
Fixed Resources code in views.py that was causing tests to fail, if no
results were found.