updating Changelog for Chaco 3.3.2 release
updating Changelog for Chaco 3.3.2 release

burnpanck/chaco,ContinuumIO/chaco,ContinuumIO/chaco,tommy-u/chaco,tommy-u/chaco,ContinuumIO/chaco,tommy-u/chaco,burnpanck/chaco,ContinuumIO/chaco,burnpanck/chaco