test base: handle app context
Merge pull request #59 from orvsd/base_test_app_context

test base: handle app context
Fixed serialization error for install_course task.
Merge pull request #62 from dean/fix-celery-hardcode

Fixed serialization error for install_course task.
Made install_course_to_site more configurable
Corrected github issue #2 by moving variable values to config/default.py.dist
Corrected default.py.dist var assignment : to =
added INSTALL_COURSE_ before new var names
refs #2 put config keys in 'quotation marks'
install_course: fix rebase fail

refs #2