removing X-UA-Compatible meta tag as its now a part of the nginx config
Adding trans strings for base navigation elements
Moving towards specified settings loader, tweaking requirements

* vagrant now can specify settings to load based on django.requirements
pillar
* local_dist now used as a base for vagrant as well as a base for a
user’s local.py if developing locally
* adding non-private vagrant DB password and settings
* root requirement.txt now only for fabric command support. to get
local install use requirements/development.txt
* removing some heroku things