stores lowercase email for gravatar
Merge pull request #104 from rockaBe/gravatar

stores lowercase email for gravatar
Added a comment explanation on returnTo previous URL middleware, changed static cache from 1 week to 1 month
Corrected buildAssets to builtAssets directory in .gitignore file
Merge pull request #105 from rosswilson/master

Corrected buildAssets to builtAssets directory in .gitignore file
Added Twit library to List of Packages