Find multiple messages

Use Articulatable instead of TTSAction and choose one random message.
Small rendering fix
Add logging
Store Articulatables in the Articulator
Make Articulatable a class
Add test sentence
Fix a speed bug with default configuration
Use non-interactive configuration
Fix patterns on T-junction
Use another test configuration
Add note about the usage of situations
Note about NLG
Integrate HypothesisViewer into main window.
Fix loopings.
Improve the baseline

Take the shortest message and add a special patterns file to reduce the
offset of 4-6 seconds.
Cleanup the incremental articulator.
Add note about saying "you"
Improvements to the incremental articulator.
Better standard articulator.
Add other configs.