Merge pull request #11 from growthcode/Jessica

Jessica
Merge pull request #12 from growthcode/Jessica

Adds helper method, started some new seeds
added gravatar
Adds more to seeds
Merge pull request #13 from growthcode/xang

added gravatar
Merge branch 'master' of https://github.com/growthcode/Tweet_of_Thrones into Jessica
changes layout and add migration for name col