Update to experimental r13565
Header cleanup: stop using Glib types where they aren't truly needed. Eases GThread deprecation errors.
Added some consts.
change names for displayName and detailedDescription, improve char code and remove const.
Refactor status-bar text for multiple items, was very broken
Added runtime check in SP_-cast macros.
Modified SP_IS_ macros.
Merged Item.
Merged FlowX classes.
Added constructors to SP classes.
Replaced all casting macros with glib-independent ones.
Renamed virtual function names.
Added "virtual pad" to - SPFlowregion - SPFlowregionExclude
moving trunk for module inkscape