* Core: lazy-load worlds in unpickler
this should hopefully fix customserver's memory consumption
* WebHost: move imports around to save memory in MP
* MultiServer: prefer loading _speedups without pyximport
This saves ~15MB per MP and speeds up module import if it was built in-place.
* Tests: fix tests for changed WebHost imports
* CustomServer: run GC after setup
* CustomServer: cleanup exception handling
* WebHost: request maximum amount of file handles from the system for autolauncher.
* WebHostLib: wrap resource import into try to restore windows compatibility
* WebHost: Make custom server prefer ipv4 for display
* WebHost: Make server retry saving in case of connection issues
* WebHost: fix autolaunch guardians getting stuck waiting for the oldest two rooms.
Probably not related to the issues of the system itself getting stuck, but should be fixed anyway.
* WebHost: logfile is meant to be guarded by access cookie
* WebHost: set patch target to null if port is not valid, disabling auto-connect
LttP: move glitch_boots to new options system
WebHost: options.yaml no longer lists aliases
General: remove region.can_fill, it was only used as a hack to make dungeon-specific items to work