Only fix symlinks for the architecture we're building.
Added patches to support the STEAM_RUNTIME without affecting other path environment variables.
Added a step to create .build-id directory with symbol files
Make sure if a binary package is rebuilt that it's reinstalled.
Set the STEAM_RUNTIME environment variable from run.sh
Added zenity as a convenience and to avoid library conflicts between the system's zenity and our libraries.
zenity is built with GTK 2.0 and without webkit support to minimize dependencies.