GPII-549: Full editor link now opens PMT and triggers a save to the preferences server.
GPII-549: Set invoker called when pressing Full Editor instead of triggering a 'click' to save button.
GPII-549: Full editor now represents a link.
Merge https://github.com/GPII/prefsEditors
GPII-549: Save on transition to full editor

Implemented a workflow by which on clicking the "Full Editor" link, the preferences are saved and the user is sent back to the PMT. To accomplish this the gpiiStore's set method had to be refactored to take in an event. Transitioning to the PMT will only occur if a pageTransitionRequest (clicking on the "Full Editor Link") and a save operation have occurred.
GPII-549: Made the gpiiStore evented.

The events weren't firing as teh gpiiStore was not an evented component.
Merge pull request #33 from jobara/GPII-549

GPII-549: implementation of "Full Editor" link in PCP
Merge branch 'master' into GPII-590