Nodemanager unit tests are slow for Repy V2

[choksi81]

It was reported that the unit tests are very slow when run with the Repy V2 nodemanager. We need to take a look and figure out why this is.

To duplicate this, check out both the branch and trunk of our repository. Create directory A and directory B. From the branch run preparetest to copy over the files to directory A. From trunk run preparetest -t on directory B to copy over all the Repy V1 files along with nodemanager tests to directory B. CD into directory A, run nminit.py and then start up the nodemanager (nmmain.py). CD into directory and move/rename the file ut_nm_subprocess.py. Then start up all the unit tests using:

~$ python utf.py -m nm