fix UI json bug

Author: CamDavidsonPilon

Diff for: CHANGELOG.md

@@ -1,4 +1,5 @@
 ### Upcoming
+ - fixed bug that was causing bad json from the server, causing empty / non-loading areas in the UI. Sorry!
  - fixed `datum` bug in the Overview that was crashing the UI. Sorry!
  - introducing some outlier protection in growth rate calculations. This is tunable with the `ekf_outlier_std_threshold` value under `[growth_rate_calculating.config]`. The default value, 5.0, is pretty conservative, and will still allow some spikes to permeate to the growth rate and nOD. Try a value of 3.5 or 4.0 if you want to see more. Don't put it less than 3.0 - that's silly.
  - added options alternative mqtt brokers with the new configuration
@@ -13,7 +14,7 @@ ws_protocol=ws
 tls=0
 ```
  - new UI MQTT library
- - cleaned up app MQTT code, too.
+ - cleaned up `pioreactor.pubsub` MQTT code, too.
 
 
 ### 24.2.11

Diff for: update_scripts/upcoming/pre_update.sh

@@ -18,3 +18,6 @@ crudini --ini-options=nospace --set  $PIO_DIR/config.ini mqtt username pioreacto
                               --set  $PIO_DIR/config.ini mqtt broker_ws_port 9001 \
                               --set  $PIO_DIR/config.ini mqtt ws_protocol ws \
                               --set  $PIO_DIR/config.ini mqtt tls 0
+
+# this was causing bad responses from the server...
+sudo lighttpd-disable-mod compress