Doc: add some odt explanation; delete max_duation parameter
Doc: add some odt explanation; delete max_duation parameter

antoine-de/navitia,xlqian/navitia,thiphariel/navitia,thiphariel/navitia,djludo/navitia,prhod/navitia,xlqian/navitia,patochectp/navitia,frodrigo/navitia,pbougue/navitia,Tisseo/navitia,francois-vincent/navitia,xlqian/navitia,CanalTP/navitia,TeXitoi/navitia,lrocheWB/navitia,VincentCATILLON/navitia,kadhikari/navitia,antoine-de/navitia,TeXitoi/navitia,xlqian/navitia,is06/navitia,djludo/navitia,kadhikari/navitia,patochectp/navitia,thiphariel/navitia,kinnou02/navitia,kinnou02/navitia,antoine-de/navitia,thiphariel/navitia,TeXitoi/navitia,kadhikari/navitia,xlqian/navitia,prhod/navitia,francois-vincent/navitia,Tisseo/navitia,lrocheWB/navitia,prhod/navitia,lrocheWB/navitia,kadhikari/navitia,frodrigo/navitia,francois-vincent/navitia,ballouche/navitia,is06/navitia,pbougue/navitia,is06/navitia,CanalTP/navitia,Tisseo/navitia,CanalTP/navitia,VincentCATILLON/navitia,Tisseo/navitia,prhod/navitia,fueghan/navitia,is06/navitia,lrocheWB/navitia,CanalTP/navitia,pbougue/navitia,patochectp/navitia,kinnou02/navitia,pbougue/navitia,fueghan/navitia,CanalTP/navitia,patochectp/navitia,fueghan/navitia,ballouche/navitia,VincentCATILLON/navitia,djludo/navitia,antoine-de/navitia,frodrigo/navitia,kinnou02/navitia,frodrigo/navitia,ballouche/navitia,Tisseo/navitia,TeXitoi/navitia,VincentCATILLON/navitia,fueghan/navitia,francois-vincent/navitia,ballouche/navitia,djludo/navitia