You can't set this value very well, since it's automatically computed
from the mass and the collision shapes. But since the values are higher
than many people might suspect, so being able to read it helps estimate
the amount of torque you might need to apply.
-=-=-=-=-=-=-=-=-=-=-=-=-=-=
-Removed "density" property
-Added instead more flexible "angular damp" and "linear damp"
-Added ability to override angular and linear damp in rigidbody
-Added gravity scale option rigidbody
Test well and iron out bugs, when it works the same will be moved to 3D
-=-=-=-=-
-Fixed problem with scaling shapes (#827), related to not taking scale in consideration for calculating the moment of inertia
-Added support for multiline strings (or comments) using """
-Save subscene bug, properties not being saved in root node (#806)
-Fix Crash in CollisionPolygon2DEditor (#814)
-Restored Ability to compile without 3D (#795)
-Fix InterpolatedCamera (#803)
-Fix UV Import for OBJ Meshes (#771)
-Fixed issue with modifier gizmos (#794)
-Fixed CapsuleShape gizmo handle (#50)
-Fixed Import Button (not properly working in 3D) (#733)
-Many misc fixes (though no new features)
-=-=-=-
-Fixed some DAE import & export bugs
-Changed Collada exporter to use the mesh loops API
-Added tangent export to Collada exporter
-Added triangulation option to Collada exporter
-Changed a little how normalmaps are handled in shader. Not sure if it's working properly, be careful.
-Fixed some strange bug with kinematic bodies #776
-Fix release compilaiton issues #782
