C++11 Quickbook

Hi,

I've been doing some quickbook development, and I was thinking of
using C++11 (maybe auto, rvalue references, variadics, range for loops
and initializer lists, depending on how widespread support is). Any
objections? I imagine most people are compiling it with a recent
compiler anyway.

I'm also thinking about using clang-format. Would anyone object to
that? Of course I'll have to stop it formatting spirit grammars, so it
can't be used everywhere.

Daniel