Removed separate forms/container templates, and restyled login popup
Pared back authentication system to a working username/password login, using Symfony's built-in form_login component #51
Stripped extraneous code from CamdramSecurityBundle - external login will be re-implemented in a separate bundle #51
Created new parallel bundle which allows the user to log in using Facebook, Google or Raven. No attempt has been made to link them to Camdram user accounts (yet - that's coming next) #51
Committing start of integration of two login listeners so I can carry on on the train... #51
Merge branch 'master' into security_rewrite

Conflicts:
	app/SymfonyRequirements.php
	app/config/security.yml
	composer.lock
	src/Acts/CamdramBundle/Entity/Entity.php
	src/Acts/CamdramBundle/Entity/Person.php
	src/Acts/CamdramBundle/Entity/Show.php
	src/Acts/CamdramBundle/Resources/public/stylesheets/app/app.css
Made login work again after changes elsewhere. Created drop-down login form in header #51
Adding new files for previous commit... #51
Removed all references to 'groups' (for now at least...). Simplified authorisation layer to use existing 'acts_access' table #51