Minor doc stuff.
Sync Zeroconf with pyTivo and HME for Python.
Align the name with the one used on the web site -- more descriptive for
most users.
Align the filename with the official name.
No longer testing with Python 2.3 or 2.4.
Consistent capitalization for section headers.
About box for OS X.
Bundle build system and help book for OS X (only).