* Player model: Remove vertical 1 node offset for new engines, but
Required due to the settable player collision box engine feature
change for MT/MTG v0.5.0 that breaks compatibility with old client
so due that this commit will added backguard compatibility
* Autodetec minetest versoin engine and provide right model
character, update player code to provide compatibility with player_api
Previously, body and limbs were stretched vertically by 1.125, creating
rectangular pixels on side faces. Head was unstretched.
Remove stretch of body and limbs, leaving the head unchanged.
No other change would excessively shorten the model, so also scale up
the model slightly, by * 1.05, such that the reduction factor for height is
equal to the increasing factor for width. This minimises the changes to
height and width.
Remove cape support.
Update the collisionbox to match.
Add missing license.txt.
