Make oppetarkiv work with --all-episodes again

seems they changed some css-classes

lib/svtplay_dl/service/oppetarkiv.py

@@ -19,7 +19,6 @@ class OppetArkiv(Svtplay):
                 log.error("Couldn't find title")
                 return
         program = match.group(1)
-        more = True
         episodes = []
 
         n = 0
@@ -28,12 +27,13 @@ class OppetArkiv(Svtplay):
         else:
             sort = "tid_stigande"
 
-        while more:
+        while True:
             url = "http://www.oppetarkiv.se/etikett/titel/%s/?sida=%s&sort=%s&embed=true" % (program, page, sort)
-            data = self.http.request("get", url).text
-            visa = re.search(r'svtXColorDarkLightGrey', data)
-            if not visa:
-                more = False
+            data = self.http.request("get", url)
+            if data.status_code == 404:
+                break
+
+            data = data.text
             regex = re.compile(r'href="(/video/[^"]+)"')
             for match in regex.finditer(data):
                 if n == options.all_last: