[Bf-python] Blender 2.79a - proposed list of backported commits for add-ons

[stephen leger]

> rBAe6b81de7e176  2017/12/11   Lukas Treyer (cnd)                 Applying D2933: Adds support for elevation attribute for lwpolylines (code 38)

Should be considered, as it allow proper import of terrain curves with elevation.