removed branding, added google+ support

you'll need to create a `config-local.coffee` file like this:


```coffeescript
exports.mongo =
  connection: process.env.MONGO_CONNECTION or 'mongodb://localhost/mydb'

exports.github =
  account: 'natural'

exports.twitter =
  account: 'troymelhase'
  oauth:
    consumer_key: '<key here>'
    consumer_secret: '<secret here>'
    access_token: '<access token here>'
    access_token_secret: '<access token secret here>'

exports.linkedin =
  path: 'whatever/jsoa'

exports.blog =
  name: 'jsoa.io'
  owner:
    displayName: 'Jose Soares'
    avatarUrl: 'http://secure.gravatar.com/avatar/f0ffff73b0d4901ab4eea4901cca6c81'
    jobTitle: 'Technology Consultant'
    email: "jose <em>AT</em> linux.com"

# for google+, can be removed or commented out
exports.google_plus =
  key: '<api secret>'
  account: '<google plus id>'

exports.google_analytics =
  account: 'UA-38842789-1'