* Draw background over titlemap
* HIDEBACKGROUND to show titlemap
* Specify NOMUSIC or IGNOREMUSIC (to not change music)
* Linedef execs implemented for tree hierarchy, including bubbling (NOENTERBUBBLE/NOEXITBUBBLE)
* Specify ENTERWIPE and EXITWIPE
* Menuid hierarchy fixes (Control mapping, joystick setup)
* Time attack handling fixes
* Specify custom wipes on runtime for D_Display and P_SetupLevel (for titlemap)
* Allow for forcing and skipping a wipe
* Wipe utility functions F_GetWipeLength and F_WipeExists
* M_SkyScroll optimization with still speeds; refactor background drawing
* Music (in time attack screens so far)
* FadeStrength
* HideTitlePics
* Scrolling backgrounds in Time Attack (moved F_SkyScroll to m_menu)
* S_Init -> S_InitSfxChannels because it did mostly SFX anyway
* S_MusicPlaying, S_MusicPaused, S_MusicName, S_MusicExists new status methods
* I_MusicPlaying, I_MusicPaused
(cherry picked from commit f5f0b5e76c)
* Actual indication of modified game status on the addons menu.
* Yes, I know this has nothing to do with the branch, I'm just doing little things I found useful.
* Enable SECTORSPECIALAFTERTHINK since we probably really want to use that sloped lava wave in RVZ.
* Allow for infinite lives to be set via the setlives command/Pandora's Box.
* Refactor P_DoFiring(), with guidance from Sal.
* Correct the CRAWLA HONCHO\nCAN NOW BECOME\nSUPER CRAWLA HONCHO sliding movement in non-green resolutions.
* Bomb sphere! Paraloopable hazard. Replaces MT_SPECIALSPIKEBALL.
* Blueberry bushes, both normal and Xmas, from patch.dta.
* BSZ tulips, also from patch.dta!
* Frozen Hillside badniks - Penguinator and Pophat.
* Frozen Hillside ice decoration!
* Fixed some big bugs with the DSZ light beams.
* Made multi-mare special stages work, in a troll way - the Chaos Emerald disappears in a puff of smoke, and the Spinbobert laughter sound plays... >:3c
* Reverted the mobjtype number changes from the source SOC/Lua, which we can do later when doing a final pass of the levels.
* State optimisation.
* Serious cruft-removal of the NiGHTS drone thinker.
* Fix the issues where the player wouldn't curl into jump in waterslides or dropping off rope-hangs.
* Tweak NiGHTS player flashing.
* Add text colour support to the titlecard font.
* Use that to make the PRESS SPIN\nMID-JUMP thing when you get all Chaos Emeralds use the titlecard font for readability.
* Fix the GOT ALL EMERALDS page not lasting the correct, extended amount of time.
* Fix that thing where flying mid-spin didn't enact autobrake.
* Modify graymap a little on Sryder's suggestion.
* [COMPLETELY UNRELATED] fix that thing where the addons menu will fail on files/paths with spaces in [/COMPLETELY UNRELATED]
