Clean up the codes so that only the best implementation is kept. The old
-rw-r--r-- 790 Makefile.template
-rw-r--r-- 6419 NodeHelper.C
-rw-r--r-- 178 NodeHelper.ci
-rw-r--r-- 4631 NodeHelper.h
-rw-r--r-- 1352 NodeHelperAPI.h
drwxr-xr-x - example
-rwxr-xr-x 240 install.sh