use tree iterator to free scene nodes

apply new CxTreeIterator from ucx 3.1 preview

bring first scene graph to live

remove unused cx/list.h include

improve implementation of scene graph tree

make AscText immutable when drawing

rename AscTextNode to just AscText

allow NULL argument für asc_text()

(0) -30 -10 -8 +8 +10 +30 tip

mercurial