fix reported aTV IP in "forwarding" environments (X-Forward-For", eg. on Synology)
add support for audio transcoder
enable photo channels

- tested with TheBigPicture, PhotoShow, NYTimesLens
- not sure about the SlideShow…
rename MEDIAURL->VIDEOURL (compare image-, musicurl)
bugfix: JSConverter translating {{URL()}}

WebServer.py: JSConverter didn’t translate {{URL()}} without arguments
correctly - actually didn’t translate it at all.
Plus make sure, we always supply a “path”, too.
honour request for "bootstrap.js"
rework http "query" handling to get closer to standard
fix: better differentiate between "similar" IP Adrs (eg. *.10 vs *.107)
Added detailed list view to TV shows
Merge pull request #1 from iBaa/master

update