package.json: change licence to MIT - remove githead field
signup: initial work
 - rename signin to login (routes, handlers)
 - rename register to signup (routes, handlers)
 - modify tips based on Twitter signup page
 - Remove no longer used grant tasks and targers
 - lib/dust-helpers: Make JSONIter a dust helper and move
date format helper in
 - use JSONIter with helper syntax
 - update bootstrap
signup: show tip for focus form

 - Gruntfile: use independent watch tasks for less and browerify
signup: start acceptance tests work
 - add casperjs tests
 - modify make target for acceptance
 - remove dead packages for package.json
 - modify form.js to show tips on signup page