change the name of functions used in testcase o...
update the calling of rt functions after change...
change the name of NMG functions in librt from ...
change the calling of functions in libnurb afte...
make sure there is no *.c files named rt_nurb_X...
change a comment. small update.
change macros name from RT_NURB_XXX to NURB_XXX.
change functions' name in libnurb, make them st...