added document metadata helper method. Fallback for enmpty Document.versions
Merge pull request #208 from tochman/doc_version_control_clean

Fix for Document version control
Merge pull request #209 from AgileVentures/develop

Deploying to Documents VC to Staging
added events and events_instances model. Added migration for model
writing cukes and implemented controllers for events and event instances. Added some views
merging with Thomas
added airpair logo, spaced them out
added code climate logo
added images to public/asset directory
updated user index view
schema
Merge branch 'develop' into sponsors

Conflicts:
	app/views/layouts/_sidebar.html.erb
	app/views/layouts/application.html.erb
	app/views/layouts/with_sidebar.html.erb
	app/views/pages/about-us.html.erb
	app/views/pages/getting-started.html.erb
	app/views/pages/guides.html.erb
	app/views/users/index.html.erb
returned projects to full width
fixed visitor project page
added mote logic and tests to events.
added factory and updated events_controller spec
added 'category' attribute to Event. Implemented dynamic grid in index. Added helper for event cover image
Written cucumber tests for tabs links
found bug in form - time attributes are set to nil when submitting the form. Also, assets will not precompile correctly
history of AV and schedule