* removed the script rule from the Editor, now will only be supported via a script or JSON manual edits
* Mesh Serialization - scriptProcessorRule doesn't save with field empty, but produces no error
* added a test to make sure Script Processor Rule operates with an empty filename
Jira: https://jira.agscollab.com/browse/ATOM-14889
Tests: Launched the Editor to removed the script rule from the Editor