GPII-568: Added OS detection functions.
Trying to expose such information through fluid.enhance .
GPII-568: Cannot pass progressiveCheckerOptions to fluid.prefs.builder
GPII-568: Duplicated "fluid.prefs.builder"
Only way i could find to pass progressiveCheckerOptions to it.
GPII-547: Created "accountCreated" in GPIISession.
The PMT frame hooks to this event to show user token notification.
Made the login/logout calls of GPIISession non-async because we want to serially streamline the logout/login that is triggered by the GPIIStore "refresh" of system level applications when setting preferences. Does not affect much the Ux (at least when running GPII in localhost).
In GPIIStore, when saving preferences of existing user, thus NOT creating new user token, log the user out and then immediately login again in order to "refresh" the system-level applications with the new saved preferences.
GPII-568: Removed the "isUnknownPlatform" OS check.
GPII-568: Using a "gpii.pcp.progressiveEnhancement" grade.
Instead of duplicating the "fluid.prefs.builder" grade.
GPII-547: Removed the "args" property whenever it contained only {arguments}.
GPII-547: Corrected some comments.
GPII-547: Refresh of AT applications is happening with an event.
GPII-547: Created some TODOs.
GPII-568: Moved the "gpii.pcp.progressiveEnhancement" grade
to the OSDetection.js file in order to be reusable.
GPII-547: Moved logic of success event of set to external function.
GPII-578: Using same styling for textFieldSteppers.
GPII-578: Made the styling of textFieldSteppers prettier.
Merge branch 'master' into GPII-568

Conflicts:
	src/shared/schemas/js/pcpSchema.js
GPII-547: Getting logged user's token from GPII.
Merge branch 'master' into GPII-578
Merge branch 'master' into GPII-547
GPII-592: More/less in magnifier is now a button.
In order to receive focus. Some additional wiring was needed.
Needs styling.
GPII-592: Made the more/less button look like a label.