Add gems for twitter bootstrap.

gem "therubyracer"
gem "less-rails"
gem "twitter-bootstrap-rails"

and "rails g bootstrap:layout application ﬂuid"
Add gem of pry.
Create module of occupation and method of Arrived?.
Modify index.html.erb in view.
Translate English into Japanese.

_form.html.erb
new.html.erb
idnex.html.erb
Modify bug.
Add @arrived and @not yet in patricipants#index.
Modify CSS file to change background.
Merge branch 'master' of https://github.com/yashihei/UKETSUKERUDAY

Conflicts:
	app/views/participants/index.html.erb
Add seeds.rb.
Modify some view files.
Add gems for heroku.
Add gem for libv8.