Repaired Filter all, brought tree decorations back

Employed QStyledItemDelegate for found count icons
Draw coloured round rect for a basket in tree (like in KDE3 version)
FilterData is now struct
Put icon names into separate header
Updated menu icon names to KDE4
Tomboy import fixes

Check ~/.local/share/tomboy path in addition
Recreate notebooks structure
Import bullet lists
FoundCountIcon::paint optimization (QPixmapCache as in KDE3 version)
merged Filter all and Tomboy import fixes