Happy new year :fireworks:

[ci skip]
Bundle update
generate required attribute for `date_time` input

closes #730
Merge pull request #731 from plataformatec/issue-730

generate required attribute for `date_time` input
Travis notify using campfire

Conflicts:
	.travis.yml
Add test case for template leakage

See https://github.com/rails/rails/pull/8936
Merge branch 'master' into rails_4

Conflicts:
	.travis.yml
	Gemfile.lock
	test/action_view_extensions/builder_test.rb
Update rails dependecy