Postgres Laravel framework test errors

[nickelization]

The Laravel framework test fails for Postgres. We should figure out why and fix any applicable bugs.

For context, the test seems to work fine until the point that migrations start being run, but then fails on the first migration:

 2014_10_12_000000_create_users_table .............................. 9ms FAIL

   Illuminate\Database\QueryException 

  SQLSTATE[25P02]: In failed sql transaction: 7 ERROR:  current transaction is aborted, commands ignored until end of transaction block (SQL: alter table "users" add constraint "users_email_unique" unique ("email"))

  at vendor/laravel/framework/src/Illuminate/Database/Connection.php:760
    756▕         // If an exception occurs when attempting to run a query, we'll format the error
    757▕         // message to include the bindings with SQL, which will make this exception a
    758▕         // lot more helpful to the developer instead of just the database's errors.
    759▕         catch (Exception $e) {
  ➜ 760▕             throw new QueryException(
    761▕                 $query, $this->prepareBindings($bindings), $e
    762▕             );
    763▕         }
    764▕     }

      +9 vendor frames 
  10  database/migrations/2014_10_12_000000_create_users_table.php:24
      Illuminate\Support\Facades\Facade::__callStatic("create")

      +37 vendor frames 
  48  artisan:37
      Illuminate\Foundation\Console\Kernel::handle(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
ERROR: 1

[nickelization]

Related issue : REA-3025