added blog and facebook to broadcast_formats
removed empty file
work in progress
merged with master
updated rspec
url validator gem
model spec + impl
removed empty lines
added blog urls to seed
facebook links
fixed facebook link errors

also nicly alligned all the =>
social links partial

renders an linkt with an icon for facebook / wordpress / ...
added sozial links to broadcast formats
Merge branch 'master' into social-broadcast-formats
added facebook and blog url's fields to the form partial
Merge branch 'master' into social-broadcast-formats

Conflicts:
	Gemfile.lock
Merge pull request #142 from koelncampus/social-broadcast-formats

social broadcast-formats