I fixed a syntax error in the site configuration file relating to the user preferences. The $ sign should be outside the curly braces. I also changed username variable from username to email so that it matches the id specified in the ServicePrefs.json file.
Merge pull request #5 from MattRK/SiteConfigurationFix

Syntax error in the site configuration file preventing login and playback
Merge pull request #24 from jk0/master

Fix syntax error in site configuration.