States for the campaign and tests.
Style fixes
Fix style
Fixed new states for campaigns.
Merge branch 'master' into campaign-status
Merge branch 'master' of https://github.com/ITBA/donar into campaign-status
Fixes in Milestones changed percentage for amount and state transitions of a campaign
About Us page
logo of sponsors
Removed advertisers without borders
corrected ids for classes
Merge pull request #40 from ITBA/about_page

About Us page
Fixed some repeated tests
Merge branch 'campaign-status'

Conflicts:
	app/admin/campaign.rb
	config/locales/en.active_record.yml
	config/locales/es.active_record.yml
	db/helpers/campaigns_creation_helper.rb
new footer
Images without porcentual width
No goal percentage in milestones
Several devise fixes
User model in admin
Contributions in users show