Grabber enhancement

Enhancements:
Easy usage, look&feel redesign.
Add disk name (hint: after finish grab, automatic, but need to know the name and when will be finished), need to analyze this point.

Only disks should be shown in the list, which is Fostex Disks (one partition, figure out what else can be checked.)

Analyze it, if we need two lists on the grab dialog.

External grabber:
Exit code ::getExitCodeProcess()
-interface decl for shellexecute és createprocess féle elinditásokra.
http://msdn.microsoft.com/en-us/library/ms682499.aspx
http://support.microsoft.com/kb/q190351/

Start with the grab dialog and the external grabber launch paths described in the issue, including getExitCodeProcess, ShellExecute, and CreateProcess. Determine how disks are discovered and how grab completion is reported. Done means the grab flow covers disk names, filters the list to Fostex disks, resolves whether two lists are needed, and handles external-process exit status.

Written by the indexing model from the issue text.