adding notification mailer and spec
Merge branch 'devel' of github.com:18F/myusa-server into feature/mail-branding
Merge branch 'feature/logo_url' of github.com:18F/myusa-server into feature/mail-branding
updating logo url name
constraining image to 60px
Merge branch 'devel' of github.com:18F/myusa-server into feature/mail-branding

Conflicts:
	app/views/doorkeeper/applications/_form.html.erb
Logging in from MyUSA marketing page redirects to app #352
Logging in from MyUSA marketing page redirects to app #352

Tests session is destroyed unless during redirect
Create UI for adding owners developers to application

Added owner_emails and developer_emails to model because we need to store plaintext record as well as associations to user model.
- Removing css comments
- Adding integration test
- Changing alt tag
Merge branch 'devel' of github.com:18F/myusa-server into feature/mail-branding
Added a test
Force logout with url params

Use warden hooks to allow us to force a redirect by specifying 'logout=true' in the query params.
Modify audit code to prevent against infinite loop

Calling current_user inside of before_logout hook can cause bad things to happen.
Merge branch 'devel' into feature/multiple-owner-ui

Conflicts:
	app/controllers/applications_controller.rb
	db/schema.rb
	spec/models/doorkeeper/application_spec.rb
fixing alt tags
css changes for mailer
Merge branch 'devel' of github.com:18F/myusa-server into feature/mail-branding
Explicitly pass flag to login flow to indicate whether we should redirect back

If the user abandoned the login flow, we do not want to use that return_to path later. So, unless a flag is explictly passed to the login flow, we should clear the return_to.
clean up calls to clear_return_to