This is an automatically built version of the FluxEngine client which is generated whenever a significant checkin has happened. It's had no testing whatsoever.
Windows users: get the fluxengine-installer.exe. This will install both the GUI and the command-line tool.
OSX users: get the FluxEngine.pkg file. This will install the FluxEngine GUI into your Applications directory.
Unix users: get the source and build it yourself!