Airwave itself is free software, but the VST SDK it depends on is not.
This means that trying to build airwave fails with an error about
manually adding VST SDK to the store, rather than the expected error
that non-free software has been requested.
Move most of wine configurations to winePackages which is not built on Hydra.
Leave two top-level packages:
wine: stable release with an "office" configuration;
wineStaging: staging release with a "full" configuration.
