GPII-667: Updating to latest version of Infusion

Upgraded to the latest Infusion from master to get the fix for FLUID-4686 which resolves issues of saving all preferences and not just ones that differer from the default values.
GPII-667: Updated references to the infusion file

The infusion file was renamed from MyInfusion.js to infusion-prefsFramework.js. The references to it, have been updated.
GPII-667: fixed textfieldStepper tests

The textfieldStepper tests were missing a dependency (ariaUtility.js)
Merge branch 'master' into GPII-667_FLUID-4686
GPII-667: Removed a failing, erroneous test.
Merge pull request #53 from chrispetsos/GPII-667_FLUID-4686

GPII-667: PMT & PCP only save preferences that differ from the defaults