Merge pull request galaxyproject#9638 from mvdbeek/fix_ts_integration…

…_test_failures

Fix ts integration test failures

Prep release for tool-util 20.5.0.dev0

Tag version 20.01

Merge pull request galaxyproject#9234 from mvdbeek/mount_configs_rw

[20.01] Mount job_working_directory/configs rw

Update tool-util requirements (now depends a new galaxy-util).

Starting work on util 20.1.0.dev1

Version 19.9.1 of tool-util (tag galaxy-tool-util-19.9.1).

Version 19.9.0 of tool-util (tag galaxy-tool-util-19.9.0).

Version 19.9.0 of objectstore (tag galaxy-objectstore-19.9.0).

Version 19.9.0 of job-metrics (tag galaxy-job-metrics-19.9.0).