More patches and cleanup.

* Cleaned up how the Media Library HTML renders when uploading a file or pushing a config to an Anvil! when known_hosts has to be populated.
* Fixed the alert system to send emails when a server is deleted.
* Added a "Back" button to the Media Library's home page to return to the being-managed Anvil!
* Updated the new installer to set the 'root' password to the same password set for the Striker htpasswd user.
* Updated the alert system to not send emails when the BBU hold-up hours increase.

v1.1.5 gets closer and closer!

Signed-off-by: Madison Kelly (digimer) <digimer@alteeve.ca>