LOGGER -> logger

See:

    - http://stackoverflow.com/a/1417216
    - http://stackoverflow.com/a/12069687
    - http://stackoverflow.com/a/2296092

&c.
add PMS.conf web_conf option for custom WEB.conf path/directory
log WEB.conf path and permissions in the startup banner
use common code to implement the file resolution policy for web_conf and PMS_PROFILE
docfix
fix DVDISOFile display name (thanks, leroy)
fix DVD thumbs
fix video thumbnails
docfix: fix FAQ link
fix chapter file display names (thanks, leroy)