Remove CPP from license attribution; I don't work there anymore
Add lib dir (currently empty)
Break telnet components into lib/telnet.py.
Move poll-related things into lib/poll.py.
Break backends into lib/backend.py, query constants to lib/admin.py.
Shift constants around; define BASENAME in telnet.py.
Remove now unnecessary BASENAME from vSPC.py.
Promote vSPCBackendLogging to lib/backend.py from its third-party file.