* Hooked in a server setting to enable/disable folder watching
* Validated the file rename change event
* Validated delete file works
* Tweaked some logic to determine if a change occurs on a folder or a file.
* Added a note for an upcoming branch
* Some minor changes in the loop that just shift where code runs.
* Implemented ScanFolder api
* Ensure we restart watchers when we modify a library folder.
* Fixed a unit test
