Keep connections alive by reusing the same curl handle

Add more video services

Translation of menu strings defined in XSLT files

Recognize strings that indicate errors on the returned web pages. Many
sites return "no results found" as an HTML page without setting any
HTTP error codes. YLE areena does this for "too many search results"
error, too.

Show image next to video's name

Debian packaging: move the daemon, the vdr plugin, and the command
line client to separate packages.

stream command should check if the file is really available, and try
lower priority version if not

scrolling is not working in video description page

status page should be refreshed periodically

command line client: show download progress

SVTPlay: add search
