Add retry connection to peerjs server on login
mute videos
Merge pull request #592 from maraoz/add/mute-by-default

mute videos by default
Merge pull request #589 from yemel/feature/peerjs-reconnect

Add retry connection to peerjs server on login and peerjs server error handling
Python 2.6 is required for gyp

Document the problem (http://stackoverflow.com/questions/21155922/error-installing-node-gyp-on-ubuntu) and suggest a solution (use a Python version manager eg pyenv). This is especially helpful for Ubuntu 14.04 which comes with Python 2.7.
Merge pull request #597 from ethers/master

Python 2.6 is required for gyp