Add 4 new mongoose queries to mongoose cheatsheet
Check if there is already an account that isn't linked to a google account but uses the google accounts email address
check for null email for gravatar
Add nodejitsu deployment instructions
Merge branch 'master' of https://github.com/dmamills/hackathon-starter

* 'master' of https://github.com/dmamills/hackathon-starter:
  check for null email for gravatar
Code style formatting
Added comments explaining what each authentication strategy is used for.
Added instructions on how to remove auth providers
Merge branch 'master' of github.com:sahat/hackathon-starter

* 'master' of github.com:sahat/hackathon-starter:
  Added instructions on how to remove auth providers
Update how to remove auth providers
Merge branch 'master' of https://github.com/robjohnson189/hackathon-starter into robjohnson189-master

* 'master' of https://github.com/robjohnson189/hackathon-starter:
  Check if there is already an account that isn't linked to a google account but uses the google accounts email address
Updated flash message in Google Strategy
Check if there is an account with a given email address when linking GitHub strategy.
Update Google Strategy
Check if there is an account with provided email when linking with Facebook strategy
Updated formatting
Added a table with list of packages + descriptions
Update packages table
Update Readme
Update Bootstrap to v3.1.1