added setting to skip migrations for tests. added check to delete_all_outputs to not remove workspace folder if no scenario folder exists. changed file location in test_population_link so it passes.
changed name of variable in delete_all_outputs to be more descriptive. updated gitignore with cache directory from build results.
Merge branch 'master' into fix-python-tests
added tests to indicate what should happen when a new Population is created with an invalid source file. Refs #189
added tests for PopulationParser. fixed class to allow a utf16 file to be parsed. Refs #201.
created tests module for ScenarioCreator. moved test related fixtures into module.
Merge branch 'master' into python-tests
New Windows executable with changes for issue https://github.com/NAVADMC/SpreadModel/issues/211 (writes to UnitStats table at end of iteration).
added tests for probability at form level. fixed issue with modal not properly displaying a validation error when saving. Refs #190.
Using bulk_create to speed things up for large population files.
Fix for handling both new and old style histogram PDF parameters.
Creating blank UnitStats in WAL mode for #211
Merge remote-tracking branch 'origin/master'
Passable Graph titles after an eternity of experimentation for #216
added test to verify modal closes when probability functions are edited and saved. fixed bug where edit view was not returning proper information for ajax requests. Fixes #195
Finished removing chart junk for now.  Closes #216
Reduced Graph font size.  Closes #215
Merge remote-tracking branch 'origin/python-tests'

Conflicts:
	SpreadModel/settings.py
New Windows executable: previous version was accidentally compiled with debug code left turned on.
The SQLite database is now put into Write Ahead Logging mode (issue https://github.com/NAVADMC/SpreadModel/issues/150).