Changed from New BSD to a custom license. The new license requires a Spine license to use the code. If you have a valid Spine license, you can do whatever you like with the code. This should not be a problem for anyone using the runtimes with Spine, nothing changes. If using the runtimes without a Spine license, you now need a Spine license. This is because the runtimes were created explicitly to be used with Spine.
iOS MonoGame has no implementation for GetData/SetData, however we don't need to worry about the volatility of Textures with regards to screen resolution re-size as this is not an issue on iOS.
RenderTarget2D is volatile. This means when there is any change to screen resolution, the content will be lost. This is common when changing to full-screen, alt+tab, screensavers, and locking/unlocking the computer. We can counteract this by directly setting the content of Texture2D.
