Merge pull request #907 from StackStorm/STORM-883/mistral-integration-tests

Refactor mistral tests to use FixturesLoader
Using wf trace logging config file for mistral logging.
typo Jinga -> Jinja
Merge pull request #909 from herveleclerc/master

typo Jinga -> Jinja
Fix a bug with sensors - we need to establish a database connection inside the
sensor_wrapper since sensor_wrapper runs inside a separate process.

We need to do this because of changes introduced in
931c238eac087ea84d535df1c3823edfbdfe8eb5
Merge pull request #910 from StackStorm/sensors_triggerwatcher_fix

Fix sensor exploding when TriggerWatching was reading existing Triggers from the database
Merge pull request #908 from StackStorm/mistral-logging

Using wf trace logging config file for mistral logging.
Move unit tests to separate directory

Move unit tests to tests/unit directory for each component. This is in preparation for adding integration tests. Modify test path in Makefile and tox.ini.