E3D V6 Mount with Fan for CTC / Flashforge / Replicator - Reversible

I loved the design by MacNite, but wanted to show off those beautiful E3D heatsinks! So I took his design and re-mixed it so that the fans would mount on the back and the E3D heatsinks would be shown in all their glory...

Note that even with my changes, the mount can still be mounted the way that MacNite designed it - it's really your choice. ;-)

I also made the following improvements:
* Modified the mount so that both hotends are adjustable about 2mm in total, making leveling quite