More specific labels for the legends

gpii-NPGatheringTool-desktopGroupLabel was split into two new ones: gpii-NPGatheringTool-gnomeGroupLabel and  gpii-NPGatheringTool-easeOfAccessGroupLabel. So "Desktop" gets replaced by "Universal Access Settings" and "Ease of Access Center" for Fedora and Windows, respectively.
More specific labels for Win and Lin accessibility settings

Replace "gpii-NPGatheringTool-desktopGroupLabel" with "gpii-NPGatheringTool-gnomeGroupLabel" and "gpii-NPGatheringTool-easeOfAccessGroupLabel" for Fedora and Windows, respectively. So "Desktop" becomes "Universal Access Settings" (Fedora) or "Ease of Access Center" (Windows).
Merge remote-tracking branch 'cstrobbe/patch-4'

* cstrobbe/patch-4:
  More specific labels for Win and Lin accessibility settings
  More specific labels for the legends