Squashed commit of the following:

commit 76847fe87f452e8692d996a4eacf49d4de700d79
Author: Lukasz Zatorski <lzatorski@gmail.com>
Date:   Fri Nov 15 13:41:04 2013 -0800

    fix(launcher): behavior fixed for cleaning tmp directory

commit 09dd0d5794d983195ec1e493b9bd341766612719
Author: Lukasz Zatorski <lzatorski@gmail.com>
Date:   Wed Nov 13 19:31:43 2013 -0800

    fix(launcher): Removed trailing whitespace

commit 9653c85a6a376afa63e95b145496749a0416b196
Author: Lukasz Zatorski <lzatorski@gmail.com>
Date:   Tue Nov 12 19:12:15 2013 -0800

    fix(launcher): sigkill after sigint if not dead

    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.