Minie library v0.4.1

More design and implementation changes to DynamicAnimControl.

• Added support for attachments nodes.
• The center of a linked rigid body can be offset from its joint.
• Major refactoring to base AttachmentLink, BoneLink, and TorsoLink on a new PhysicsLink class.
• Renamed JointPreset class to RangeOfMotion.
• Refer to links by reference instead of by name.
• Added a forceKinematic option to the freeze() methods.
• Renamed many methods.
• Preserve animation data during a rebuild().
• Moved RagdollCollisionListener to the com.jme3.bullet.animation package.
• Completed the read() and write() methods.
• Lowered the default for torsoMass from 15 to 1.
• Fixed bug where DynamicAnimControl reported collisions from other DACs.
• Catch any attempt to set local physics.
• Don't re-order controls unless it's necessary.

Other noteworthy changes to Minie:

• Improved dumps and descriptions of joints, physics controls, collision objects, and rigid bodies.
• Standardized getPivot() methods to avoid aliasing.
• Avoided aliasing in setViewPorts() methods.
• Added a getTargetVelocity() method to TranslationalLimitMotor.
• Added an activate() method to PhysicsCollisionObject.
• Fixed a bug that caused an assertion failure while reading a CompoundCollisionShape.
• Updated native shared libraries to v1.0.12 of jme3-bullet-native.