Notably over chat.

Music pausing is now optional.
Sounds may be paused--on by default.
The game itself being paused in off-line mode is now optional.

(showfocuslost now loads from config.)

Window focus does not necessarily imply mouse movement.

Make maces normally placeable in maps.

See merge request STJr/SRB2Internal!390

Tweak Line Special 414's behavior

See merge request STJr/SRB2Internal!382

Prevent wraparound on Level platter when there are less than 3 rows

See merge request STJr/SRB2Internal!383

Kart-port dedicated server Lua fix (round 2)

See merge request STJr/SRB2Internal!387

Transparent flat fixes (Resolves #249)

Closes #249

See merge request STJr/SRB2Internal!384

Mapthing tweaks (object_tweaks division 1)

See merge request STJr/SRB2Internal!396

Fix player state resynching

See merge request STJr/SRB2Internal!393

Fixed a netgame crash that was caused by a closing brace being in the wrong place :v

See merge request STJr/SRB2Internal!395

* Make the Amy Cameo only spawn in SP, Record Attack, or Co-op unless it's the Clone Mode.
* Add the diagonal spring flag options Red and Yellow Diagonal Springs have to the Blue Diagonal Spring as well.
* Put diagonal blue spring in config.

Fix missing & which I totally forgot about in writing this fix (yes this is the "compile error" everyone was talking about)

Fix sprite-related console errors that occur in netgames whenever the game attempts to synch the player's state.

Turns out the code was using P_SetMobjStateNF to "fix" the player's state ...which got things all wrong, lol.

Fix clients being resynched at the wrong gametic

See merge request STJr/SRB2Internal!391