New Actros plastic parts and more v2.4

Changelog:
Version 2.4.0 (2016.01.10)
+ New variant for frame (painted + plastic)
+ Painted air intake box variants
! Front mirror 1st UV updated
! Better 1st UV for frame
! Better 1st UV for sunshield (you can use straight lines on skin)
! Fixed fender and spoiler material bugs

Release date: 2016.01.10

Truck based on truck from game version: 1.22

Future plans:

- More (originally plastic) painted parts.

- SCS Blender Tools conversion of truck model too.

- Some modified parts.

Authors:

davidzoli, Flemming V and Capital (tandem chassis)