Minie library v0.4.0

Extensive design and implementation changes to KinematicRagdollControl and its ilk, now in its own com.jme3.bullet.animation package. DynamicAnimControl is now the core, with ConfigDynamicAnimControl for configuration.

• Bone shapes are now aligned with bone coordinate axes instead of mesh coordinate axes.
• The inverse-kinematics code has been removed in anticipation of a complete redesign.
• Kinematic mode now has 4 submodes.
• Rigid body updates now take place just before each physics tick instead of during scene-graph updates.
• Added an interim tool for tuning a DynamicAnimationControl.
• Added example tunings for the Jaime and Elephant models.
• Added per-axis freezing of dynamic joints.

Other noteworthy changes to Minie:

• Added a getSpatial() method to the AbstractPhysicsControl class and privatized its spatial field. Also added an empty controlRender() method.
• Bugfix: NullPointerException in PhysicsSpace.getGravity().
• Bugfix: JVM crashed while reading a SixDofJoint from a J3O asset.
• Added check for invalid location in RigidBodyMotionState.getWorldLocation()
• Disabled the isInWorld checks in PhysicsRigidBody.
• Renamed and standardized the accessors of RigidBodyMotionState.
• In RotationalLimitMotor: renamed the limit/bounce accessors, added accessors for CFM parameters, added getAccumulatedImpulse() and getAngle() methods.
• In TranslationalLimitMotor: added accessors for 4 parameters, added getOffset() and setTargetVelocity() methods.
• Added getPhysicsTransform() and setPhysicsTransform() methods to the PhysicsRigidBody class.
• Bypassed setSpatial() in GhostControl and RigidBodyControl in case the spatial does not change.
• Eliminated unnecessary aliasing in joint constructors.
• Named the debug textures in BulletDebugAppState.
• Visualize kinematic bodies in blue instead of magenta, to distinguish them from dynamic bodies.