Realphabetize monsters.txt
Temporarily remove the GOBLIN BEAM

Since it was causing more oddness, namely, the message "the
GOBLIN BEAM misses you."

wheals, feel free to re-add this once you've gotten it working.
Travis: pull in SDL2_mixer.

Oops.
Revert "Temporarily remove the GOBLIN BEAM" (Grunt)

Can't reproduce the original error anyway, but this should fix it?

This reverts commit 66d23762bafaafa1428e8de2f36b82832012e8c1.
Tweak Regen's desc.

Unholy == demonic, for conduct purposes.
Fix Bribe Branch's description's grammar (PleasingFungus).
Make monsters indifferent on bribe end, rather than hostile (dpeg).
Make sound support / building against SDL2_mixer compile-time optional.

Disabled by default; MinGW builds will use WINMM sound and so will not
build SDL2_mixer, but Android builds will automatically build SDL2_mixer.

Pass SOUND=<anything> to make to enable sound support.
Properly ifdef out a couple of sound playback calls.

Oops.
Some tentacle code cleanup.
More artefact names
Tweak a randart description

"Spiderweb" is better than "spider web", but "gossamer" is best.
Skip symlinks in checkwhite.

The android-project directory has symlinks to several submodule directories,
resulting in "Can't read" errors when running checkwhite without the
submodules.
More tentacle code improvements.
Add two compile checks on array sizes.
Yet more whitespace tweaks
Improve combat messages slightly
Fix broken demonspawn body slot mutation uniqueness check.
Simplify.
Don't allow random death knights (9240)