report offers
Log in with Persona.
Added configurable persona audience
More experiments on simpler layout
configurations for heroku env
don't validate password, there is no password
removed all references to password
Account and transfer documentation and some refactoring
Breadcrumbs and scopes on posts for User entity
Better way to manage org-wise reg numbers
Extract persona code from user.
Added ERD to documentation
Added public domain notice
Added extended Persona configuration

ENV['PERSONA_AUDIENCE'] can now contain several audiences, and the
`authenticate` method may ask for a specific audience.
Fixes to Offers controller.
Cannot use blocks this way, let's use flash directly
Sometimes `@tag_list` is nil
Merge branch 'master' into translations

Conflicts:
	app/controllers/offers_controller.rb
	app/views/offers/index.html.haml
	app/views/users/give_time.html.haml
	app/views/users/new.html.haml
	config/locales/ca.yml
	config/locales/es.yml