docs for sample settings
Remove a clang patch, apparently made obsolete by r199632

aka https://github.com/llvm-mirror/clang/commit/1e3683eba37eebbef4895106b99120302349dfc9

Note that you might be getting an error in the pull step - the easiest
way to solve this is either to run "git rebase --skip" in the
src/llvm/tools/clang directory, or just blow away the source and clone
again from scratch.
Info in the README for Clang 3.5 (aka "let's just use C++11 and make life easier")