Adding back faculty user id for development purposes

This was lost down the line in a previous commit.
Alertify auto-saved changes for pages.

a swanky "auto-saved" dialog appears now whenever auto-save occurs
Alertify only on page load if auto-save enabled

* Todd feels that the constant notification of auto-save is annoying. Informing the user once should be sufficient.
* Commenting out log message
* Adding a notification message on page load if auto save is enabled