updated to bootstrap v3rc2
updates for bootstrap changes
version bumped 0.5.6
refactored core footer styles
Add 'use drywall' to mongo commands

For those of us with no Mongo experience, it helps to add the 'use drywall' command to the install instructions!
Use mongo script to init admin db.

mongo load scripts/0000-init-drywall-db.js
Updated README: use script to init drywall db.