Support index.html and index.htm as default document

cr https://cr.amazon.com/r/2490528/
Merge branch 'master-chef-11.4' into mainline-chef-11.4
Don't try to install mysql libraries as they are already available.

cr https://cr.amazon.com/r/2554922/
Try to make README more eye catchy

cr https://cr.amazon.com/r/2559219/
Don't try to install mysql libraries as they are already available.

cr https://cr.amazon.com/r/2554922/
Allow deploy_to to override application install location

Currently every other reference to /srv/www in the context of
application deployment is configurable. Adjusting the :deploy_to
configuration variable in an application changes the location of the
install. However in this one case in nginx uninstall /srv/www is
hard coded as the directory prefix.

cr https://cr.amazon.com/r/2565517/
Add retries 2 to all remote_file invokations.

Don't give up on a failing HTTP request.
Enable verbose mode for autofs.

There are problems with autofs from time to time that are hard to
diagnose. Set VERBOSE for autofs, so there will be more information when
the problems comes back.
Bump default node.js version to 0.10.29.
Enable swap on t1.micro and t2.micro.
Merge branch 'master-chef-11.4' into mainline-chef-11.4
Merge remote-tracking branch 'github/master-chef-11.4' into mainline-chef-11.4