Merge tag '1.5.4' into develop

Release v1.5.4
More logging
more logging
more logging and added getAppStore() method to ensure instantiation
Current work checkpoint. See diff for details.
Current work checkpoint. See diff for details.
Current work checkpoint. See diff for details.
Current work checkpoint. See diff for details.
Current work checkpoint. See diff for details.
force private cache storage to tmp
rp
Merge branch 'release/1.5.5'