FE/Qt: 7676: Disk Encryption (DE) support: Handling encryption progress errors during settings save routine.
FE/Qt: Implementation of UIProgress (QObject wrapper for CProgress).
FE/Qt: file header cleanups.
FE/Qt: Modal-window Manager: Make sure progress-dialog which passed as parent to other modal-dialog is shown before that.
FE/Qt: Some progress-dialog cleanup.
FE/Qt: Top-level modal-window manager integration, some cleanup.
FE/Qt: UIProgressDialog rework/cleanup.
FE/Qt: 6357: Make sure no Mac Sheets with the same parent are used when there is already one.
FE/Qt: 6227: Decrease GUI build time: Rework COM wrappers generator to create one header per each COM interface. Update all GUI files to use newly generated headers.
FE/Qt4: UIProgressDialog cleanup; it's possible to add an image to the progress dialog now; images and sheet windows for save/restore state