PGOApi Hash Fix

--- a/pgoapi/hash_server.py
+++ b/pgoapi/hash_server.py
@@ -38,29 +38,35 @@ class HashServer(HashEngine):
             'Requests': [base64.b64encode(x.SerializeToString()).decode('ascii') for x in requestslist]
         }

-        # request hashes from hashing server
-        try:
-            response = self._session.post(self.endpoint, json=payload, headers=self.headers, timeout=30)
-        except requests.exceptions.Timeout:
-            raise HashingTimeoutException('Hashing request timed out.')
-        except requests.exceptions.ConnectionError as error:
-            raise HashingOfflineException(error)
+        for x in range (0, 5):
+            # request hashes from hashing server
+            try:
+                response = self._session.post(self.endpoint, json=payload, headers=self.headers, timeout=30)
+            except requests.exceptions.Timeout:
+                continue
+                # raise HashingTimeoutException('Hashing request timed out.')
+            except requests.exceptions.ConnectionError as error:
+                continue
+                # raise HashingOfflineException(error)
+
+            if response.status_code == 400:
+                continue
+                # raise BadHashRequestException("400: Bad request, error: {}".format(response.text))
+            elif response.status_code == 403:
+                raise TempHashingBanException('Your IP was temporarily banned for sending too many requests with invalid keys')
+            elif response.status_code == 429:
+                raise HashingQuotaExceededException("429: Request limited, error: {}".format(response.text))
+            elif response.status_code in (502, 503, 504):
+                raise HashingOfflineException('{} Server Error'.format(response.status_code))
+            elif response.status_code != 200:
+                error = 'Unexpected HTTP server response - needs 200 got {c}. {t}'.format(
+                    c=response.status_code, t=response.text)
+                raise UnexpectedHashResponseException(error)

-        if response.status_code == 400:
-            raise BadHashRequestException("400: Bad request, error: {}".format(response.text))
-        elif response.status_code == 403:
-            raise TempHashingBanException('Your IP was temporarily banned for sending too many requests with invalid keys')
-        elif response.status_code == 429:
-            raise HashingQuotaExceededException("429: Request limited, error: {}".format(response.text))
-        elif response.status_code in (502, 503, 504):
-            raise HashingOfflineException('{} Server Error'.format(response.status_code))
-        elif response.status_code != 200:
-            error = 'Unexpected HTTP server response - needs 200 got {c}. {t}'.format(
-                c=response.status_code, t=response.text)
-            raise UnexpectedHashResponseException(error)