Improve file search performance on Linux and FreeBSD

See merge request !2198

TERM IO fixup

Closes #1141

See merge request !2206

Fix offsetting of rotated sprites drawn in the HUD by Lua

See merge request !2171

Fix LAN discovery for SRB2 servers

See merge request !2219

Fix segfaults on some systems due to polyvertex being NULL

See merge request !2065

Interpolate captions, Untie captions from resolution

See merge request !1930

Implement epicenter and radius support for quakes.

See merge request !1797

Do not apply pmomz when jumping/bouncing through a platform

Closes #72

See merge request !1955

Fixup ARM64 build

Add a check for overflowing the TERIOS buffer

Add auto-kick for inactive players

See merge request !2148

A few Lua input improvements

See merge request !2185

Fix #1126 and #1127

Closes #1127 and #1126

See merge request !2189

Expose P_CheckSkyHit to Lua

See merge request !2000

Expose P_DoSpinDashDust to Lua

See merge request !1998

Expose FollowMobj-related functions to Lua

See merge request !1994

Expose P_TouchSpecialThing to Lua

See merge request !1993

Expose P_GivePlayerSpheres to Lua

See merge request !1996

Limit builds to just "Windows x86" and "Debian stable:amd64", all other builds can be started manually

pickedchar doesn't need to be set in these two places, since G_DeferedInitNew already does that.

Captions' pop-in animation now starts 8 GUI pixels above the resting position, instead of (2 x GUI scale) GUI above it