update issue #61
PropertyPage to display the DblLog file and change the DbgLog Settings

also:
- get the Dll file from the filter-pointer and not the CLSID (better for unregistered filters)
- show filter-file details also in filtersform (more consistent)

git-svn-id: http://graph-studio-next.googlecode.com/svn/trunk@345 c2f33eb2-41b2-391d-4cb4-d9d0608729ba