add quantity and name to tickets (events_volunteers model)
remove number of volunteers from event model - this will be calculated from the number of tickets
remove referenecs to Event.number_volunteers from tests
add ticket_blocks to the database
add local underscore file
build gemfile.lock
add ticket block functions to event model and controller
use local underscore in application.html.erb
add ticket blocks to event  views
FIX: routes was breaking user registration