static code analysis
corrected the casts (hopefully)
Put a few std::vector<SPitem*>
Just... some... more... lines...
UI: some strings were not translatable
Remove sp_desktop_document and finish cleanup of desktop-handles.h
Deprecate and remove sp_desktop_selection in favor of SPDesktop::getSelection
Migrate more widgets to Gtk::Grid
Get pollar tiling working agains with trunk
The Polar Arrange Tab of the Arrange Dialog now hides the parametric controls until the user selects the corresponding radio button
Added documentation and made helper functions in polar-arrange-tab.cpp static
Removed debug output
Renamed files to better match coding conventions