Followup to armature layers fixes.
Code cleanup: style
Fix T39903: osm importer division by zero error in UTM mode
small cleanup and minimal use improvemnts
Merge remote-tracking branch 'hm-blender/master'

* hm-blender/master:
  small cleanup and minimal use improvemnts
  Fix T39903: osm importer division by zero error in UTM mode
  Code cleanup: style
  Followup to armature layers fixes.
BugFix: Render Material Override
Merge remote-tracking branch 'hm-blender/master'

* hm-blender/master:
  BugFix: Render Material Override
correct a bug  and add a new visualization option to make the object in the layer in wire o in solid mode
Merge remote-tracking branch 'hm-blender/master'

* hm-blender/master:
  correct a bug  and add a new visualization option to make the object in the layer in wire o in solid mode
Set to animation category
Merge remote-tracking branch 'hm-blender/master'

* hm-blender/master:
  Set to animation category