Install Factory Girl

Install factory_girl_rails gem.
Basic soldier factory.
Use in match spec.
Add FactoryGirl helper method to spec helper.
Add match stats.

Add match stat columns to soldier table.
Add match stats to match results email.
Reset stats in token initialization method.
Add methods for incrementing stats.
Add increment calls for match stats to appropriate locations in simulation.
Add match view with stats and log.

Stats are not persistent once another match starts.
Match controller directs to match view after sim.
Add link to match view to match results email.
Updated integration spec to match view.
Rename and fix specs
Merge branch 'match-stats'