Run rake db:schema:load instead of rake db:migrate

These apps are being created for the first time, so they have no
database to migrate. Running all of the migrations just takes longer
than loading the schema directly.

I noticed this after a CMS deployed failed becasue the database wasn't
done migrating in time.
Fix spec to test for db:schema:load
Merge pull request #39 from G5/load-schema

Run rake db:schema:load instead of rake db:migrate