SANKORE-329 last part of issue - refactoring virtual keyboard. source code still require testing and defect correction for Linux and Mac OS

checking if internet is available before trying to check for an update. This resolve the shutdown after a minute error on mac os x and windows

the new version check response is now parsed to find the two values version and url independently of the response id

UBApplicationController::adjustDisplayView - set new transform to display view only if it does not match current transform