* include/Dialog_Filesystems.h,
src/Dialog_Filesystems.cc: Replaced treestore with liststore. I decided i didn't need a treeview after all...
* src/Dialog_About.cc: Replaced "Gnome Partition Editor based on libparted" with "Gnome Partition Editor"
* src/xfs.cc: fixed small error with creation of xfs filesystems (adrighem)
* Added dialog (accessable from 'gparted' menu) which shows supported operations for the various filesystems.
I plan to put some more info in it, like what is missing etc..