Add skills to a training path.
Merge remote-tracking branch 'upstream/master'
Refactor out TrainingPathsController.
pre refactor
maybe `Merge remote-tracking branch 'upstream/master'

Conflicts:
	zss
Refactor to use Router to manage menu selection.
Refactor out SkillsController.
Move zombie art into a text file
Clarify Router method names
Complete refactoring skills functionality into SkillsController.
Merge remote-tracking branch 'upstream/master'

Conflicts:
	app/controllers/skills_controller.rb
	zss
Refine user interface.
Merge remote-tracking branch 'upstream/master'
User stories for today's exercise
Merge remote-tracking branch 'upstream/master'
added skill descriptions and began implementing achievments