Merge pull request #1 from sramanujan/dev_asinha

Updating README with prerequisites
Fixing path in nginx conf
Merge branch 'master' into dev_sramanujan
Updated README with Facebook / hosts file.
Added facebook login, passing info to server - next to implement couch
Added db template, and fixed a few other stuff
Merge branch 'dev_sramanujan' of github.com:sramanujan/FightWithFriends into dev_sramanujan