Add warning about Apple's weird Clang version.
Print warning on OSX when using old libstdc++ (rather than libc++).
Merge branch 'master' of https://github.com/kentonv/capnproto
Automatically add -stdlib=libc++ if system C++ library doesn't support C++11 (needed on OSX).
Document how to build on OSX.
More Mac notes.
Add note about installing autotools.
Mention how to get Xcode cli tools.
Fix comment.
Don't document inlines.
Disable use of unit analysis (via kj::Quantity) by default (since it has some overhead), but enable it specifically for dev builds.
More parsers.
Merge branch 'master' into rust