Merge branch 'develop' of github.com:guluc3m/gul-gultalks into certs
Updated comments view, still buggy.
New header style concept
WARNING: still non functional
Merge branch 'develop' of github.com:guluc3m/gul-gultalks into develop

Conflicts:
	app/views/comments/_comment.html.haml
Added initial event certifictes support

Include new mailer features.
Merge branch 'develop' of github.com:guluc3m/gul-gultalks into certs

Conflicts:
	Gemfile
Merge branch 'develop' of github.com:guluc3m/gul-gultalks into develop
Merge branch 'certs' into develop
Better structure and refactoring.
Added cocoon gem
Saves speakers in the database, needs some code refactoring
Update event Notifier with new speaker schema
Updated locales
Refactoring ActiveAdmin
Refactoring event view
Added *speakers* method to Event model. Display new speakers' names in Event show view
Added speaker locales, fixed creation of events with no speakers
Added missing locales
Merge branch 'speakers' into develop

Conflicts:
	app/views/events/show.html.haml