Add script that updates cluster files from R4 to R5
Created by: matofeder
This PR does the following:
- Improving initial work on R4 to R5 script. PR replaces
upgrade_to_r5.sh
script by scriptupdate-R4-to-R5.sh
- Adjusting docs and renaming files related to the R2-to-R3 update script. This should help to determine release update scripts and related files.
Note: !Script update-R4-to-R5.sh
is still under development and will be stabilized within the release R5!