httplib2 0.4.0 is old (2007) and throws warnings in py2.6. Latest is 0.6.0, I reviewed changelog (http://code.google.com/p/httplib2/source/browse/CHANGELOG), no incompatible changes appear to be made, submitted
https://control.sog.geek.net/sog/trac/ticket/17979 , once that's done, upgrade and run tests.
Upgraded in dev.