Update GetIndexShow functions to get rid of error

Get rid of irritating 'unknown parameter "query"' when this function is
called.
Update for new HTML layout on SVTPlay page
Update the image finding routine to utilize new json interface

Just discovered this sweet json url that gives me the thumbnail for all
shows. Alot better than the old method :)
Merge pull request #14 from Coi-l/master

Update for new HTML layout for get episode objects function