Set builtin formspecs to autoscale in order to get consistent formspec look and feel
Uncouple label positioning from font size (May break some formspecs but is required to allow manual font adjustment)

Also rewrite mapgen registration for static initialization

Add minetest.get_mapgen_params()
Deprecate minetest.register_on_mapgen_init()

Fixes #1807: When the server list finishes downloading, the local server
list resets in certain conditions

This should probably be removed when minetest_game has proper biomes.
If I hear "the whole map is just stone!" again after this, I am going to detonate.

This reverts commit 9878e8de.

See: https://github.com/minetest/minetest/issues/1939 and IRC log for discussion

Signed-off-by: Craig Robbins <kde.psych@gmail.com>

Signed-off-by: Craig Robbins <kde.psych@gmail.com>

Signed-off-by: Craig Robbins <kde.psych@gmail.com>

Signed-off-by: Craig Robbins <kde.psych@gmail.com>

According to doc/lua_api.txt if paramtype2 == "facedir" the two least significant bits of parm2 orient the texture around the axis. For dirs1 (looking at a wall) these would be 0, 1, 2, 3 and for dirs2 (looking at the ceiling) 2, 1, 0, 3

Also fix leaking globals found by it.

This adds proper support for nested tables and improves performance a bit.

Signed-off-by: Craig Robbins <kde.psych@gmail.com>

Also shortens some related code and adds more parameters to string.split.