message: [docs] improve UPDATING.md around 0.31's [now] optional deps
diff: @@ -22,10 +22,6 @@ This file documents any backwards-incompatible changes in Superset and
  assists people when migrating to a new version.
  ## Superset 0.32.0
  -* If you use `Hive` or `Presto`, we've moved some dependencies that were
  - in the main package as optional now. To get these packages,
  - run `pip install superset[presto]` and/or `pip install superset[hive]` as
  - required.
  * [5445](https://github.com/apache/incubator-superset/pull/5445) : a change
  which prevents encoding of empty string from form data in the datanbase.
  @@ -33,6 +29,17 @@ This involves a non-schema changing migration which does potentially impact
  a large number of records. Scheduled downtime may be advised.
  ## Superset 0.31.0
  +
  +* If you use `Hive` or `Presto`, we've moved some dependencies that were
  + in the main package as optional now. To get these packages,
  + run `pip install superset[presto]` and/or `pip install superset[hive]` as
  + required.
  +
  +* Similarly, if you use Celery's `flower`, `gsheetsdb`, `thrift` or
  + `thrift-sasl`, those dependencies have now been made optional in our
  + package, meaning you may have to install them in your environment post
  + 0.31.0
  +
  * boto3 / botocore was removed from the dependency list. If you use s3
  as a place to store your SQL Lab result set or Hive uploads, you may
  have to rely on an alternate requirements.txt file to install those
  