adds emojis, adds before_filter on index
radio button for emojis working, user can save retro with emoji, 5 tests breaking...pulling from master
part of last commit
pull from master, fix merge conflicts
fix failing tests, need to decide if user can write one or many retros per day
Merge pull request #59 from 121watts/emojis

Emojis - adds ability to choose emoji to represent mood for each retro