Merge pull request #5 from Flamdoodle/admin

Admin
Merge pull request #6 from Flamdoodle/development

Development
Merge pull request #7 from Flamdoodle/admin

Admin
Merge pull request #8 from Flamdoodle/development

Development
Merge pull request #9 from Flamdoodle/admin

Admin
Merge pull request #10 from Flamdoodle/development

Development
Add menu and menu item models to active admin
- include belongs_to association
Add menu and menu items to event form