Enable path mapping for server?

Do we need to enable "path mapping" so that PhpStorm understands Xdebug's paths?

![phpstorm-servers](https://f.cloud.github.com/assets/360800/2249708/3278bfa8-9d88-11e3-94bf-1f4e7eb841ee.png)

Please also do a full setup of the IDE + project from scratch, so that we know everything works.