Blender Git Loki

Feature: Collada added new User interface options

keep_keyframes:
When sampling the distance between 2 keyframes is defined by
the sampling rate. Furthermore the keyframes defined in the
FCurves are not exported. However when this option is enabled
then also the defined keyframes will be added to the exported fcurves

keep_smooth_curves:
When sampling we do not use FCurves. So we also have no Curve handles
for smooth exporting. However when this option is enabled, Blender
does its best to recreate the handles for export. This is a very
experimental feature and it is know to break when:

- the exported animated objects have parent inverse matrices different
from the unit matrix
- The exported objects have negative scaling

There may be many other situations when this feature breaks.
This needs to be further tested. It may be removed later or replaced
by something less wonky.