clean compile on OS X
Merge branch 'unnethack' of https://github.com/tung/NitroHack into unnethack
Merge branch 'unnethack' of https://github.com/tung/NitroHack into unnethack
Merge branch 'unnethack' of https://github.com/tung/NitroHack into unnethack
clean build on OSX
Merge branch 'unnethack' of https://github.com/tung/NitroHack into unnethack
OS X builds with clang (LLVM) now, removed nested-functions flag and forced compiler in the docs