New Actros plastic parts and more 3.1.4

Change log:

Version 3.1.4 (2016.03.20)
! Interior fixes
! StreamSpace cabin beacon position fix
Mod version: 3.1.4
Release date: 2016.03.20
Truck based on truck from game version: 1.22
Authors: davidzoli, Flemming V and Capital (tandem chassis)

Credits:

davidzoli, Flemming V and Capital