Update RGG and Nuclide defaults and dependencies
Minor build changes:
- Make RGG session off by default
- Make RGG session dependent on ParaView
- Make Nuclide application dependent on RGG session
System updates will be applied on Nov 25th between 7am and 9am, EST (UTC-05:00). This site will have intermittent downtime during that time.
Minor build changes: