add draper, create event decorator to check if can_propose and generate submission link
Merge branch 'pks+as/expiration_enabled_events' of https://github.com/jnf/blinder into pks+as/expiration_enabled_events

Conflicts:
	Gemfile
	Gemfile.lock
	app/views/collect/home.html.haml
Merge branch 'pks+as/expiration_enabled_events' of https://github.com/jnf/blinder into pks+as/expiration_enabled_events
Merge pull request #61 from gruntrebel/pks+as/expiration_enabled_events

Pks+as/expiration enabled events