select added parent in list
* src/gramps_main.py: eliminated importing of string, display
error if no person selected when trying to export
* src/ListModel.py : explicitly delete renderers and columns due
to memory leak in pygtk 1.99.16
* src/PlaceView.py: explictly delete model due to above memory leak
* src/plugins/pkgexport.glade: don't set height of window
* src/plugins/WriteFtree.py: export to Web Family Tree
svn: r1942
