-> remember the previously loaded serverlist, and use if new one failed
-> show a "loading" serverlist

As the fly mode option is avaiable in-game, this is not used anymore.

This fixes main menu not fitting for 800x600 (and lower resolutions) on PC builds

Create Parameters on world initialisation and set settings of old worlds

Fixes #2497.

Fixes #2037

Client now informs about incompatible servers from the list, this permits to prevent the protocol movements.
Server announces its supported protocol versions to master server

https://forum.minetest.net/viewtopic.php?f=6&t=11201
Fixed this bug.

This reverts commit 7b17b905.

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

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

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

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