Bob Girard f184c23c31 Add unit tests (#1)
* Add unit tests for cfg.py, context_processors.py, and menu.py
* Add new plinth/tests/data directory for miscellaneous test data
* In cfg.py, add an explicit check to verify the existence of the secondary
  (non-default) plinth.config file
* In cfg.py, replace deprecated configparser.SafeConfigParser with
  configparser.ConfigParser
2015-01-30 18:11:36 +05:30
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