* renamed prefs page URL to prefs.html
* added load/savePlayerInfo to dummy_responder and to responder tests
* fixed a bug in which loadPlayerInfo was returning a bunch of extraneous info, including passwords
* added prefs.html to main navbar so people can browse there
* cleaned up syntax/logic of UserPrefs.js to match other JS modules
* added QUnit tests for UserPrefs.js
* actually commit test_UserPrefs.js
Merge pull request #373 from cgolubi1/101_prefs_ui

various code and test fixes for UserPrefs.js