HTC Touch-Pro car-holder V2.0 - V5.0

* less snug fit for the phone (scratches)
* less force required to mount on the HAMA-equipment
* instead of HAMA 5.8mm screws can be used (more rigid laptop-holders or camera mini-tripods)
* thinner base-plate
* overhang on lower side of HAMA-mount less steep
* thicker back-plate
* less stringing


improvements in V3:
* cross-supports on the back
* less snug fit of the phone (better but not yet perfect)
* allow third-party plugs that are wider then the default-one
* less snug fit on