Merge branch 'develop'
Merge branch 'develop'
Merge branch 'develop'
Fixes OBJ file exporter, closes #30
Merge branch 'develop'

Conflicts:
	src/constants.py
Merge branch 'develop'
Merge branch 'develop'
Merge branch 'develop'
Version bump 0.4.4
Merge branch 'develop'
Merge branch 'master' into develop