* The Filesystemclasses: Changed 'bool Create( const Glib::ustring & device_path, const Partition & new_partition )'
to 'bool Create( const Partition & new_partition )'. Since i now use external tools for all filesystems, the partitionpath will suffice.
* added support for jfs (create, copy, grow) and hfs (create, copy)
* fixed a bug in copying xfs filesystems.
* fixed a number of small bugs/annoying issues.