 * 0.9.1 (3y3)

 * Move gitter badge to right place (3y3)

 * Added Gitter badge (The Gitter Badger)

 * README: fix typos (Wendy Leung)

 * Bump v8-debug to v0.4.2, v8-profiler to 5.2.4 (Jim Cummins)

 * .travis.yml: drop 0.11, add 0.12 and io.js (Miroslav Bajtoš)
