Merge pull request #51 from Alewx/dev

Merge from Alewx's Dev - Dropdown & Module multiplication
FIX: Dropdown list doesn't want to hide if you click text field

This corrects a situation where the dropdown list doesn't disappear when
you click on a text field or scroll area
A new attempt to fix the scaling of some models (e.g. MK2 structural fuselage)
Merge pull request #13 from girka2k/dev

regular update