Remove double .row
Create Muscle model with CRUD controller and views
Add parens to constructor call
Add Exercise model with CRUD controller and views
Cleaner markup in navigation
Display text if no muscles are persisted
Fix bug where main muscle was not updated
Pre-select correct main muscle in exercise edit
Don't check for mainMuscle ID in new exercise form
Implement other muscles in exercises
Show exercises in muscle show page
Add installation instructions
Add note to start MongoDB