GPII-625: GPIISession is talking to "localhost:8081" now.
GPIIStore talks to "http://preferences.gpii.net/" only when POSTing for token creation.
Note that, theoretically, GPII needs to be set up to talk to the online preference's server as described here,
http://lists.gpii.net/pipermail/architecture/2014-February/001992.html
and the desired flow is described here,
http://lists.gpii.net/pipermail/architecture/2014-February/001991.html

However, no go with this setup...