Netcode hotfix
Various netcode fixes are included in this branch. Most important of all of course is a fix for the Net_CloseConnection invalid node -32769 detected message thing, or rather what actually caused that to occur.
It's a merge to master since everything here should be compatible with 2.1.18: the only main changes are related to recieving packets (whether you're the host of a netgame or a client), which AFAIK shouldn't cause desyncs if you played with these fixes on a 2.1.18-hosted netgame (or hosted a netgame with the fixes and 2.1.18-using players join you).
See merge request !185
* if you sent it to a client rather than the server, game over, your connection is closed
* if files that don't exist or are too large are requested are listed, game over, your connection is closed (they should have been checked on YOUR side beforehand, silly)
* if the server has downloading disabled anyway, ...yeah, you get the idea
Don't worry, I made sure Got_RequestFilePak cleaned up the full file request list for the node in case of failure
Admin ban fix
Okay, THIS time admin bans should work properly. Turns out the relevant code for banning did not properly consider the case of admins doing the banning, at least until now.
Unlike my last attempt at fixing admin bans (!165), this one would require both host and admin to have the fix exe assuming everyone else would be using 2.1.17, so I'm merging to next instead of master.
See merge request !167
Allowteamchange fix
Fixes "allowteamchange no" to actually work properly and NOT desync you from the game in most cases. You can now switch TO spectator freely (as intended it turns out), and switching FROM spectator is prohibited. The "Enter Game" menu option in Match/Tag now displays one of those blue window notices just like with "Change Teams" in CTF/Team Match if you cannot change teams right now. Everything else works as you'd expect.
The de-sync issue was originally reported here https://mb.srb2.org/showthread.php?p=789965#85
See merge request !168
Falling rocks fix
This fixes the rock spawners' rocks not being removed if they rolled down to the ground from a slope rather than bouncing (see https://mb.srb2.org/showthread.php?t=41963)
See merge request !162
doesn't draw off of the sides, and doesn't ignore snapping or widths for reasons that don't make sense
(for instance: the green bar in MI's test script showed *above* the blue one in non-green resolutions in 2.1.17)
Command-line skin selecting fix
Fixed http://mb.srb2.org/showthread.php?t=42312.
Also, fixed being able to change your skin colour during credits/cutscenes in singleplayer.
See merge request !158
