Apparently neither Morkdown nor Doctoc generates anchor tags consistently with Github itself; each fails in its own special ways.

Work around incompatibility between various C++ standard libs in C++14 mode on some Linux distros, including Ubuntu 14.04.

- Remove obsolete gittip buttons.
- Remove G+ follow crap.
- Indicate that Cap'n Proto is now a sub-project of Sandstorm.io.
- Add Twitter link.
- Update roadmap to not be obsolete.

added syntax highlighting for emacs

Prevent accidental bool conversion of AutoCloseFd.

fix some typos

A compatibility layer is provided to ease migration.

Failed to notice this because only the cmake build refers to it, and this only makes cmake fail on installation, which was never quite tested.