Revert "Added feature for posting applications."

This reverts commit 45b7462beee665f8b5c3aae782db6ba776deb14f. I'm thinking
that I'd rather just have users send me an email the traditional way. This was
merely just a complex email form anyway.

Conflicts:
	app/controllers/users_controller.rb
	app/mailers/user_mailer.rb
	app/models/application.rb
	app/models/user.rb
	app/views/layouts/application.html.haml
	app/views/users/upgrade.html.haml
	config/authorization_rules.rb
	config/locales/views/user/en.yml
	config/locales/views/user/no.yml
	config/routes.rb
I prefer rockets and single quotes.
Dissolving the one route translation into two.

It turns out that rails-translate-routes support multiple translation file
after all, which enables one to create one per locale. I think this is
preferable, as I like my YAML files to only have one root.
Changing some wording of users#my_transactions.
Lock is released after transaction.

Previously, the file lock was only released after a successful creation of a
transaction. This meant that as soon as someone tried to unsuccessfully create
one, all proceeding transaction would fail. Instead, we unlock the file upon
transaction commit or transaction rollback.