Implemented Rational connect_server and connect_project
Updated to use JSON instead of XML

Can create tasks and sync status in certain cases
Create work items with priority
sort of slightly working
Connects, tries to update, successfully terminates (statuses are still not updated)
Merge branch 'master' into feature_rational

Conflicts:
	sdetools/modules/__init__.py
	sdetools/modules/sync_rational/__init__.py
	sdetools/modules/sync_rational/rational_plugin.py
merged in master
return headers
response generator almost works, commented out N/A tests, fixed time representation in rational_plugin
almost working
Modified mock_response.py to use sde_api_token when applicable
(Added rational_plugin_test to vcs, for some reason it wasn't included before)
Added docstrings for tests
Merge remote-tracking branch 'origin/feature_rational' into feature_rational

Conflicts:
	sdetools/modules/sync_rational/rational_plugin.py
All tests pass except for the custom one
Merge remote-tracking branch 'origin/feature_rational' into feature_rational
Fixed API Token check
Merge remote-tracking branch 'origin/feature_rational' into feature_rational
Added response files
Merge remote-tracking branch 'origin/feature_rational' into feature_rational