7.6.0

• Bugfix: the gravity of a rigid body isn't read/written/cloned
• Bugfix: ignore lists are never cloned for non-joined collision objects
• Bugfix: IllegalStateException in DropTest while creating a ragdoll
• Allow zero-mass kinematic rigid bodies.
• Added the "addLinksForTris" parameter to SoftBodyControl.
• Based on v8.6.0 of the Heart library.
• Updated the native libraries to v18.3.0 of Libbulletjme.