Const fixes for gcc on osx
Const fixes for gcc on osx

Bryan-Peterson/chrono,armanpazouki/chrono,PedroTrujilloV/chrono,rserban/chrono,dariomangoni/chrono,andrewseidl/chrono,andrewseidl/chrono,jcmadsen/chrono,armanpazouki/chrono,projectchrono/chrono,projectchrono/chrono,armanpazouki/chrono,rserban/chrono,amelmquist/chrono,dariomangoni/chrono,jcmadsen/chrono,PedroTrujilloV/chrono,Milad-Rakhsha/chrono,scpeters/chrono,projectchrono/chrono,scpeters/chrono,Bryan-Peterson/chrono,amelmquist/chrono,PedroTrujilloV/chrono,armanpazouki/chrono,rserban/chrono,dariomangoni/chrono,Milad-Rakhsha/chrono,andrewseidl/chrono,PedroTrujilloV/chrono,amelmquist/chrono,hsu/chrono,Bryan-Peterson/chrono,Milad-Rakhsha/chrono,Milad-Rakhsha/chrono,scpeters/chrono,projectchrono/chrono,dariomangoni/chrono,tjolsen/chrono,amelmquist/chrono,tjolsen/chrono,rserban/chrono,armanpazouki/chrono,Bryan-Peterson/chrono,rserban/chrono,jcmadsen/chrono,rserban/chrono,Milad-Rakhsha/chrono,jcmadsen/chrono,projectchrono/chrono,PedroTrujilloV/chrono,tjolsen/chrono,hsu/chrono,tjolsen/chrono,jcmadsen/chrono,tjolsen/chrono,jcmadsen/chrono,amelmquist/chrono,Milad-Rakhsha/chrono,Bryan-Peterson/chrono,scpeters/chrono,jcmadsen/chrono,hsu/chrono,hsu/chrono,scpeters/chrono,hsu/chrono,armanpazouki/chrono,dariomangoni/chrono,amelmquist/chrono,rserban/chrono,dariomangoni/chrono,andrewseidl/chrono,andrewseidl/chrono,projectchrono/chrono