nif export: * add extra controller and interpolator for all NiNode   children of an Oblivion skeleton export (this avoids   crashing the game)
nif export:
* add extra controller and interpolator for all NiNode
  children of an Oblivion skeleton export (this avoids
  crashing the game)

amorilia/blender_nif_plugin,nightstrike/blender_nif_plugin,amorilia/blender_nif_plugin,nightstrike/blender_nif_plugin