Fix colors for RES_SOUND. [1772]
Fix macros with potential side effects. [1668]
Force radius 3 for randart lights. [1752]
Fix problems with macro commit.
Turned on a couple more clang warnings in Makefile.osx.
More code cleanup (unreachable code, conditionally uninitialized
variables, unused macros) thanks to clang warnings.
Merge pull request #267 from bensemmler/fixes

Fixes for 1772, 1668, and 1752.