There seem to have been some breaks in functionality with the latest Gephi release.
1. Gephi doesn't initialize the workspace with a zero index anymore, so one gets 404 errors on requests
2. Vertices/edges don't appear in the visualized workspace, but do appear in the data laboratory.
This change is "breaking" because there is a reasonably chance that these change won't allow the plugin to work with Gephi 0.8.x anymore. Users will have to upgrade to 0.9.x