[COOK-3501] client.rb template should immediately notify reload_client_config

Signed-off-by: Seth Vargo <sethvargo@gmail.com>
[COOK-3500] Rotate logs on supported platforms in chef-client if 'log_file' is set

Signed-off-by: Seth Vargo <sethvargo@gmail.com>
[COOK-3492] Add tests for upstart on CentOS 6

Signed-off-by: Seth Vargo <sethvargo@gmail.com>
[COOK-1863] Change default service style on Windows to windows_service if Chef >= 11.6

Signed-off-by: Seth Vargo <sethvargo@gmail.com>