additional setup steps (bower)

[alex-rind]

When setting up the project anew, I needed the following steps:

npm install -g brunch
npm install -g bower
npm install # use deps as listed in package.json
bower install
brunch build

Current working versions:
node: 7.9.0 (via nvm)
npm: 4.2.0
brunch: 1.8.5
bower: 1.8.0