added support for C++11 with Node.js 4+ using G++4.8
added support for C++11 with Node.js 4+ using G++4.8

SEE: https://docs.travis-ci.com/user/languages/javascript-with-nodejs#Node.js-v4-(or-io.js-v3)-compiler-requirements

Attempt No. 3 to fix 'No such file or directory' error from travis

futagoza/ePEG.js