Fix color LUT using the wrong palette

See merge request !739

Don't draw yourself in first person!

See merge request !697

Fix crash when using -skipintro and the renderer is set to OpenGL from config

See merge request !714

Fix the minecart angle thing in netgames

Closes #69

See merge request !732

Fix M_DrawNightsAttackMountains integer overflow

See merge request !737

Fix F_StartContinue fading out incorrectly in OpenGL

See merge request !738

Fix memory leak while chat is on screen

See merge request !743

Put the (pull request repo owner) branch and commit in Appveyor EXE names

See merge request !725

Fix garbage fade on Sonic's ass in OpenGL

See merge request !715

Don't set controls to keys of array bounds

See merge request !723

Fix "cam2_turnmultiplier"

See merge request !711

Fix P_AddLevelFlatRuntime again

See merge request !717

Fix mouse in controls setup menu

See merge request !706

srb2win-jameds-appveyor-exename-b1d931d4.exe

srb2win-jameds:appveyor-exename-b1d931d4.exe

srb2win-master-a6d49eaa.exe

srb2win-master-a6d49eaa.exe

Shout-out to TAG's config that somehow had
`setcontrol2 "custom3" "KEY931926528"`, cuasing the game to crash only in
Splitscreen.

Actually actually match the old behavior and check existing levelflats in P_AddLevelFlatRuntime BRUH

Fix title screen broken when leaving during resynch

Also moved the debug down in case anyone uses that.

This reverts commit ea129f70.

In splitscreen stuff, player 2's "cam2_turnmultiplier" implementation
was wrong compared to player 1's "cam_turnmultiplier"
This commit makes player 2's multiplier work just like player 1's does