Bump to version 0.13.0.1
Rescue from Errno::ESRCH in the exit hook in case webkit_server has already ended.
Fix authentication time outs.

If the incorrect credentials are provided QNetworkAccessManager just keeps
firing the same signal and it gets stuck in a infinite loop. This change only
sets the user name and password if they are different to the current user
name and password, causing the event to not be continuously triggered after
failed authentications.
Adding lock for capybara-webkit 0.13.0.1
Adding *.gem to ignore
cleanup pipes, sockets and threads causing Too Many Open Files issues.
Merge branch 'develop' of github.com:copper/capybara-webkit into develop
merge