build-target.bash: Bashed stale block.
cmake: Clarified comment about finding zlib.
cmake: third-party.cmake now favors static libs, when possible.
cmake: We now help libpng find libm during xcomp.
cmake: Simplified the cmake args we pass down to externs.
cmake: Bashed stale block.
cmake: Bashed stale block.
cmake: Bashed stale block.
cmake: Added toolchain for android-x86-32-gcc.
build.md: Added steps for android.