Autofill `permalink` before saving.
Merge branch 'add-permalinks' of github.com:remanager/rem into add-permalinks

* 'add-permalinks' of github.com:remanager/rem:
  Add title to Property.
  Run migrations.
  Add permalink to Property.
  Add permalink to Realestate.
  Add permalink to Detail.
  Add permalink to Town.
  Generate permalink automatically after create an instance.
  Fix Property seeding
  Use `find_by` as Marcus said.
  Fix auth_token cookies issue.

Conflicts:
	app/helpers/application_helper.rb
	app/models/category.rb
Add title field to the Property form.
Fill title on Property integration test.