RTSP: only skip leading zeros if the next character is also zero (fixes stream ID of 0)
Merge pull request #413 from wooyay/master

RTSP: only skip leading zeros if the next character is also zero
Merge pull request #412 from dmarion/osx

fix static port and webroot in avahi and bonjour, add OSX section in README.md
Merge pull request #414 from dmarion/osx

tvheadend_webroot can be NULL
avahi: tvheadend_webroot can be NULL - fix the fix