Merge branch 'public-musicplus-libopenmpt' of https://git.magicalgirl.moe/STJr/SRB2 into public_libopenmpt

# Conflicts:
#	.travis.yml
#	src/m_menu.c
#	src/sdl/Srb2SDL-vc10.vcxproj
#	src/sdl/Srb2SDL.props

# Conflicts:
#	src/doomdef.h
#	src/hardware/hw_draw.c
#	src/m_misc.c
#	src/sdl12/macosx/Srb2mac.xcodeproj/project.pbxproj

Update version to 2.1.24

See merge request STJr/SRB2!495

# Conflicts:
#	debian-template/control
#	debian/changelog

Add GME to MSVC 10 solution

See merge request !448

Deploy OS X and Debian packages from Travis-CI

See merge request !449

# Conflicts:
#	.travis.yml

Flashpals on screenshots

See merge request !492

Revert "Merge branch '144-scrolltweaks' into 'master'"

See merge request STJr/SRB2Internal!225

This reverts merge request !213

P_CheckSight fixes

See merge request STJr/SRB2Internal!223

# Conflicts:
#	src/p_sight.c

ACZ boss hardcode

See merge request STJr/SRB2Internal!221

(Untested)

(this could probably be in its own branch to be tested properly, but I'm on a roll with this atm)

Hardcode the bomb's explosion states, the dust object type and states, and the sprite prefixes for both

(though I'm not sure why we bother, since coronas have been disabled for a decade now)

Hardcoded ACZ3.wad's version of A_TNTExplode under the name of A_Boss5BombExplode. After a lot of confusion and silly misunderstandings on my part (as well as a lot of mess cleaning), I've finally got there!

The states for the actual bomb explosion effect itself are yet to be hardcoded, but that I'll do tomorrow afternoon probably.

Hardcode some ACZ things

See merge request STJr/SRB2Internal!220