Rostock Max PWR & USB sockets

Moving your Rostock Max from one place to another is not a breeze, because the power and USB cables come out at awkward places, and get stuck everywhere.
I fixed that !
- First, find some parts :
* a USB-B solder type connector (I recuperated mine from a scrap USB harddisk)
* a standard USB cable with male type B connector on one end (never mind the other end)
* an IEC male chassis plug (can be found on any scrap electrical equipment)
* a standard IEC power cable (never mind the ot