create event_usership table
let the user and event associated with the event_usership
run rake db:migrate command to create table in database
join event is work now
add test code by EventsController#join method
Add uploadable input
Don't add empty line when textarea is empty
Use uploadable input
Use mixin instead of copying
Remove unnecessary class
Remove unnescessary styles
Tweak css
add time merge for event. #162
Merge branch 'feature/186-github-style-upload' of git://github.com/yesmeck/19wu into yesmeck-feature/186-github-style-upload
fixed sqlite null column contraint error. #197
Merge pull request #2 from saberma/master

update code
fixed conflict.
fixed /delivered_mails route error. #150
add picture upload in content of event
add translation of event's updated