fix a few spotify key bugs and remove BTDM

components/spotify/Shim.cpp

@@ -162,6 +162,8 @@ ESP_LOGI(TAG, "Getting Spotify event %d ", (int) event.eventType);
             }
 			});
 
+			// need to make sure mercuryManager is running otherwise we'll loop and destroy instances
+			while (!mercuryManager->isRunning) vTaskDelay(pdMS_TO_TICKS(25));
             mercuryManager->reconnectedCallback = []() {
                 return spircController->subscribe();
             };

components/spotify/cspot/src/PlainConnection.cpp

@@ -179,6 +179,7 @@ size_t PlainConnection::writeBlock(const std::vector<uint8_t> &data)
                 break;
             default:
                 if (retries++ > 4) throw std::runtime_error("Error in write");
+				goto WRITE;
             }
         }
         idx += n;