Ensure DB set up correctly to use configured charset (which should be utf8mb4)

[zpchavez]

This wasn't working on another project. The fix specified below did the trick.

Acceptance Criteria

1. DB should be able to input and output anything you can throw at it.

Tasks

1. Set up a service provider that does this

$charset = $app['config']->load('db')['charset'];

$app['db']->query("set names {$charset}", DbAdapter::QUERY_MODE_EXECUTE);
$app['db']->query("set character_set_client={$charset}", DbAdapter::QUERY_MODE_EXECUTE);
$app['db']->query("set character_set_connection={$charset}", DbAdapter::QUERY_MODE_EXECUTE);
$app['db']->query("set character_set_results={$charset}", DbAdapter::QUERY_MODE_EXECUTE);
$app['db']->query("set character_set_server={$charset}", DbAdapter::QUERY_MODE_EXECUTE);

Additional Notes

• Related: Fix potential DB dump encoding issue #155