Migrated startdt/enddt to days attending
Added all required fields to the form
Updated retreat_registrations_controller for additional params
Fixed Retreat model being mixed with Event model, stubbed out methods for current retreat and checks for user retreat registration and retreat payment
Successfully assoc'd created registrations with users, added retreat creation form
Fixed a bug that prevented retreats from being associated with registrations, and set up conditional forms on the retreat#show page
Finished schedule.

Completed schedule and attended to some left over merge bits.
Merge branch 'retreat' into deploy