closes#1650
done some changes
minor changes
added markdown format to cfp#show
fixed description text position in proposals
fixed truncated description text in show action
minor changes on non-admin side
Add field cfp_type and relevant validations
Add Program#cfp to preserve backwards compatibility
Add 'for_events' scope to the cfp, in order for it to be used like
program.cfps.events
Add useful methods
Add rspec test for the new code
The supported cfp types can be viewed via Cfp::TYPES