v0.10.1

Modia3D v0.10.1

Diff since v0.10.0

• Reduce memory allocations, especially in case of collisions and FreeMotion joints.
• Require Modia 0.8.2 (drastically reduces memory allocations for FreeMotion joints).

Merged pull requests:

• An alloc collision (#102) (@AndreaNeumayr)
• Reduce memory allocation for FreeMotion joints (#103) (@MartinOtter)