Commits on Jun 25, 2015

1. Added NullHandlers to all loggers to preven "No handler" messages …

   When the code is run without setting up loggers, the loggers have no
   handlers for the emitted messages. The logging module displays:
   `No handlers could be found for logger "git.cmd"` on the
   console. By adding a NullHandler (a no-op) the message disappears,
   and doesn't affect logging when other handlers are configured.

   

   James Nowell committed Jun 25, 2015

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