by Humberto Walviece (Gorniaky)
Auto check for updates of flows for each 4h.
Note: The first time you start this flow, it will only be for data collection of flows, from the second time it checks for updates.
Note 2: Do not delete ".flowsupdates" file in internal storage.
Support & Feedback: http://llamalab.com/automate/community/flows/14179
v15: Added progress bar in notification.