GPII-226: A change on assigning pmt store.
GPII-226: In the prefsEditor demo, assign the gpiiSettingsStore via fluid.prefs.create() rather than relying on the one in the staticEnvironment.
Merge remote-tracking branch 'justin/GPII-226' into GPII-226
GPII-226: Brought the prefsEditor demo up to date with Chris new updates.