removed .o from end of lib names
added -g flag
don't use c++11 randomization
fixed a bug in normalizeBuf
added debug output redirection to file in comments
fixed some bugs in itk mutinf caller
memset device arrays to 0 and minor cosmetic changes
temporarily using joint derivative array as debug output
fixed gpu MI bugs; now it's close to itk MI
added image derivative debug output; commented out derivative calculation
replaced old image derivative to central difference
added sample points as parameter