Grabber enhancement

[bfarago]

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/