Fix auth_token cookies issue.
Use `find_by` as Marcus said.
Fix Property seeding
Merge pull request #19 from remanager/fix-auth-token-issue

Fix auth_token cookies issue.
Merge pull request #20 from remanager/database-seed-filler

Fix Property seeding
Generate permalink automatically after create an instance.
Add permalink to Town.
Add permalink to Detail.
Add permalink to Realestate.
Add permalink to Property.
Run migrations.
Merge branch 'develop' into add-permalinks

* develop:
  Fix Property seeding
  Use `find_by` as Marcus said.
  Fix auth_token cookies issue.
Add title to Property.