API: getTranscodeImagePath: adopt to less lenient PMS API

PMS long had ignored extra path components, but some time around
1.23.2.4600 this changed. It still ignores fragments though, so use
those instead.

Fixes issue #597.

PlexAPI.py

@@ -877,10 +877,6 @@ def getTranscodeImagePath(key, AuthToken, path, width, height):
         path = 'http://127.0.0.1:32400' + path + '/' + key
     path = path.encode('utf8')
 
-    # This is bogus (note the extra path component) but ATV is stupid when it comes to caching images, it doesn't use querystrings.
-    # Fortunately PMS is lenient...
-    transcodePath = '/photo/:/transcode/' +str(width)+'x'+str(height)+ '/' + quote_plus(path)
-
     args = dict()
     args['width'] = width
     args['height'] = height
@@ -889,7 +885,8 @@ def getTranscodeImagePath(key, AuthToken, path, width, height):
     if not AuthToken=='':
         args['X-Plex-Token'] = AuthToken
 
-    return transcodePath + '?' + urlencode(args)
+    # ATV's cache ignores query strings, it does not ignore fragments though, so append the query as fragment as well.
+    return '/photo/:/transcode' + '?' + urlencode(args) + '#' + urlencode(args)