Add media-queries file and styles for iPad
Add class to detect the user agent of the browser
Add helper to identify the user agent of the requests
Move mixins to classes and extended them
Merge branch 'master' into feature_responsive_design

Conflicts:
	app/views/layouts/kiitos/application.html.haml
Refactor to send notification
Set limit of characters to send in a kiito message
Set correct URLs for crowdint.com and magmaconf.com into footer buttons
Merge pull request #78 from crowdint/feature_responsive_design

Feature responsive design
Merge pull request #79 from crowdint/feature_web_notifications

Refactor to send notification
Merge pull request #81 from crowdint/add_correct_links

Set correct URLs for crowdint.com and magmaconf.com into footer buttons
Refactor of broken test on travis
Merge pull request #84 from crowdint/fix_broken_test_travis

Refactor of broken test on travis
Merge pull request #80 from crowdint/fix_characters_limit

Set limit of characters to send in a kiito message
Merge branch 'master' into remove_anonymous_option