Fixed: Disable mouselook when closing editor
Fixed: Error when filling with block with id > 255
Submodule pymclevel updated.

Submodule pymclevel:
    > 2420f33 - Fixed: Error when importing rotated schematic and copying biomes.
    > 2cfc877 - Test: Schematic.testRotate now fails when importing rotated biomes
    > 1f22806 - Fixed: Anvil chunks are given a Biomes array when created, and if they don't already have one.
    > 3cb407a - Add built docs to gitignore
    > 8e4a871 - Fixed: mce.py analyze is now 4096 block ID aware.
    > f6eadfa - Fixed: import statement automatically inserted by PyCharm was relative to the wrong source root. (again.)
Setup: Remove RELEASE-VERSION after builds.

When running from a git checkout, show the git version instead.