chore: update contributors
chore: release v0.11.3
docs(installation): use karma-cli
style(browser): correct spelling of the warning
fix(browser): reply "start" event

When a browser creates another socket.io connection, we forget the old one, however we need to reply all the events that happens in that connection. Somehow I forgot to reply "start" event, which caused the "Adapter did not report number of tests" warning.
style: make jshint happy
chore: release v0.11.4
feat(launcher): send SIGKILL if SIGINT does not kill the browser

In some cases chrome on linux does not die when it receives a SIGINT
signal. So after a SIGINT is sent, wait 2 more seconds and issue
a SIGKILL if the process is still running.
docs(config): clarify file expression examples
test(e2e.requirejs): show how to use relative dependencies
fix: do not execute already executing browsers

This was causing iframe reloads on IE8/IE9. These browsers use xhr-polling and socket.io does re-connects pretty often. We need to start execution only when the browser connects for the first time, no other re-connects.
chore: update contributors
chore: release v0.11.5
chore: release v0.11.6
feat(config): Allow tests be to run in a new window instead of iframe