Switched from a full ImageJ build, to one that has plugins only.
From now on updates will be automated by Fiji through connection to http://sites.imagej.net/CSI/
The release binaries are bundled versions of Fiji which will automatically update CSI.
If you already have a version of ImageJ2 installed you can install the plugins by going to Help>Update... (Manage update sites) (Add update site) and filling in the URL http://sites.imagej.net/CSI/