I was thinking it should go here:
The FreeCAD team provides ready-to-install packages for Windows.png Windows (32 and 64bits), Mac.png Mac OS X (Mavericks 10.9 64bits), and Linux.png Ubuntu (LTS and current, 32 and 64bits). In addition for Linux FreeCAD is provided in AppImage format.
And in the table where it says Linux.png Ubuntu 32/64bit the same should be done for AppImage:
Linux.png AppImage (with link) 64bit
Under Notes for Linux users:
AppImage should work on most modern 64 bit Linux distributions. Download the file and make it executable. It's self contained and should be portable.
This i guess should do. I only feel bad as i gave you much more work you likely anticipated. Thanks for tackling this.