Fix crash with GME sounds when being freed

See merge request !504

# Conflicts:
#	src/r_data.c

unfuck awayview

See merge request !493

Fade out music at end of level, before intermission

See merge request !472

Pk3 folders are not textures!

See merge request !502

More Memory Shenanigans

See merge request STJr/SRB2!501

# Conflicts:
#	src/r_data.c

Keep the warning though.

A lower size could technically be valid, but could easily run into strange issues.

As far as I know it's basically unused, and the strstr is inherently unsafe because there's no guarantee that a patch's contents are NULL terminated.

Could this be changed to only read the first so many bytes?

Prevent just anyone from skipping credits but allow admins

See merge request !478

Pk3 Leaks

See merge request !500

Stand(alone) lump comedy

See merge request !499

FOF slopes level load fix

See merge request !498

Part 2 of fix, make sure copied slopes also pass on hasslope status to attached target sectors for FOFs

Also fix whitespace to use tab-style spaces instead of regular spaces, ew

Fix FOF slopes briefly glitching on level load in software mode, by ensuring the FOFs' target sectors have hasslope set on creation

opengl apng fix

See merge request !497

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 STJr/SRB2!449

# Conflicts:
#	.travis.yml

Flashpals on screenshots

See merge request STJr/SRB2!492