* Try other price sources if user's preferred fails (#1342)

* Handle cached prices better when eve-marketdata returns 0 for lack of price data (#1334)

service/network.py

@@ -125,6 +125,7 @@ class Network(object):
                 raise AuthenticationError()
             elif error.code >= 500:
                 raise ServerError()
+            raise Error(error)
         except urllib2.URLError as error:
             pyfalog.warning("Timed out or other URL error:")
             pyfalog.warning(error)