Fixed compilation error in cmiss_rendition.cpp as the compare class used by stl list expects to take const object as its arguments. Tracker item 1047, https://tracker.physiomeproject.org/show_bug.cgi?id=1047
Fixed compilation error in cmiss_rendition.cpp as the compare class used by stl list expects to take const object as its arguments. Tracker item 1047, https://tracker.physiomeproject.org/show_bug.cgi?id=1047

git-svn-id: 4705079bc6b8aadf675e3696f5c015a6aa4916e3@7904 3c1deb5b-d424-0410-962d-aba41a686d42

hsorby/zinc,OpenCMISS/zinc,hsorby/zinc,hsorby/zinc,OpenCMISS/zinc,OpenCMISS/zinc,OpenCMISS/zinc,hsorby/zinc