Changed /usr/bin/python to /usr/bin/env python in the few python scripts...

Changed /usr/bin/python to /usr/bin/env python in the few python scripts that weren't already doing so to allow for python binaries in locations other than /usr/bin. In the dynamicEndpoints.py script, I also switched python2 to python, which breaks it on some distros (like Arch Linux) while making it work on others (like Debian;) more importantly however, is that doing this makes things consistant with the other scripts, which are configured to work with how Debian names things.