Merge pull request #84 from linqcan/dev

Improve debug information
Hide live streams

Hide live content due to the use of https streams. Will uncomment this when confirmed working in XBMC 13.0.
Update addon.xml
Update changelog.txt
Refactor "startVideo"

"startVideo" is now split into "getVideoUrl", "getSubtitle" and "startVideo" to make this section of the code more readable.
Furthermore, "getVideoUrl" now passes along an error message if no stream is found so that we can give the user better error information.