DO NOT MERGE YET: Demo site V2

Looking for team feedback (copy, angular.js optimization) for the V2 style guide demo site. (rackerlabs.github.io/encore-ui/)

Going to continue submitting commits, especially those marked FIXME.
Ah, you're right. I'm thinking specifically of the bulk action menu work I've been doing recently (https://jira.rax.io/browse/UXENCORE-28). However, we also use the disabled style with a spinner when there's a long API call, which I think is worth mentioning here. It happens in LBaaS here: https://staging.encore.rackspace.com/cloud/323676/hub_cap/loadbalancers