Increase HTTP logging verbose level.

HTTP requests and responses are logged when logging to file. Until now,
only the existence of requests was logged. With this change, also the
content and headers of the requests and responses is printed to the log.

app/src/main/java/com/etesync/syncadapter/HttpClient.java

@@ -128,7 +128,7 @@ public class HttpClient {
                     logger.finest(message);
                 }
             });
-            loggingInterceptor.setLevel(HttpLoggingInterceptor.Level.BASIC);
+            loggingInterceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
             builder.addInterceptor(loggingInterceptor);
         }