Quick documenation additions and updates
Adds Schedule model and specs
Adds Scheduling, many to many association model for Venues and Schedules
Adds schedule time line feature in the show view for brands
Minor fixes
Additional validation for the Schedule model plus specs
Merge branch 'opening-hours'

Conflicts:
	app/models/schedule.rb
	spec/models/schedule_spec.rb
Merge branch 'base'
Minor specs addition and updates

Guardfile updated to ensure guard systematically runs in test
environment. Among other things, it insures guard only interacts with
the test database.