set config.services_bundle_path, gets services working
fixes errors in logs
remove run_once from TestCase, sandbox calls it
use double-quotes for faster JSON parsing
remove EmptyDict._init
use setUpClass whenever possible
start of tutorial.py
trim nose_runner
move what we can to consts.py
support subdirectories in Guardfile, run tests for Services
move test_url_for_section to test_consts
actually plays videos
improve test coverage, fix typos, move some methods to common.pys
test against Callback directly