Merge pull request #12 from ggw215/Andra-Eiko

validation fixes tweet length
followers following model works, helper methods created for sessions
styling release 0
Merge pull request #13 from ggw215/greg

followers following model works, helper methods created for sessions
Merge pull request #14 from ggw215/andra_jeuel

styling release 0
Merge branch 'master' of https://github.com/ggw215/twitter_master into Andra-Eiko

Conflicts:
	app/controllers/index.rb
resolved conflicts