news feed implemented
Merge branch 'master' of https://github.com/amelialaundy/shout_out into news_feed

Conflicts:
	app/views/create_shout_out.erb
fixed icon link
Merge branch 'master' of https://github.com/amelialaundy/shout_out into news_feed
Merge pull request #19 from amelialaundy/news_feed

News feed