Nunjucks production:

Always precompile templates as part of `npm start`;
include production nunjucks and template js for client-side
rendering if NODE_ENV = production.
Remove template precompiling from npm start, add to README
Remove and ignore precompiled template file
Fix missing quote in npm start
Separate logged in nav from login/logout
Active links are always blue, all nav links blue on hover
Remove stale app.locals
link to badge upload page when backpack is empty

this is a short term workaround for issue #781
Merge branch 'development' of git://github.com/mozilla/openbadges into development
Simple db-nuke script to reset dev databases
Merge pull request #758 from stenington/fixes-fixes-fixes

[wip] Pile of design tweaks and fixes
Merge pull request #783 from arasbm/development

link to badge upload page when backpack is empty
Merge pull request #759 from stenington/534-nunjucks-prod

Nunjucks production
Merge pull request #792 from stenington/589-nuke-db

Simple db-nuke script to reset dev databases
Update README.md
Update README.md
Make `bin/db-nuke` safer:
  Adding user prompts
  Adding -f to skip prompts
Merge pull request #796 from stenington/589-nuke-db

Make db-nuke safer
Production optimizations, front-end tweaks, and db-nuke development utility
Set up less middleware with production defaults, override with development config in development