1.90.9:

2012-03-15  Murray Cumming  <murrayc@murrayc.com>

	Fix warnings found by clang++.

	* examples/demo/primitives.cc: Use (void*) instead of NULL
	to avoid missing sentinel warnings.
	* goocanvas/src/canvas.ccg:
	* goocanvas/src/itemmodel.ccg:
	* goocanvas/src/points.ccg: Use 0 instead of NULL to avoid
	NULL generally.