L2SS-227:  Make tangonet the default for Docker

Closes L2SS-227

See merge request !42

L2SS-124  Fix the bug in lofar20rc.sh

Closes L2SS-124

See merge request !37

Resolve L2SS-182 "Sdp sst pointname updates"

Closes L2SS-182

See merge request !36

L2SS-226 This syncs the Tango DB entries with the PCC attributes

Closes L2SS-226

See merge request !38

Resolve L2SS-176 "Expose git version"

Closes L2SS-176

See merge request !35

The script can now locate itself and set LOFAR20_DIR accordingly.
This allows for multiple installations in parallel.

Resolve L2SS-216 "2021 05 17 branched from master sdp hotfix"

Closes L2SS-216

See merge request !32

Merge branch 'master' of https://git.astron.nl/lofar2.0/tango into L2SS-216_2021-05-17-Branched_from_master-SDP_hotfix

Resolve L2SS-218 "Move existing tooling to bootstrap dir"

Closes L2SS-218

See merge request !33

- Replace the set +e/set -e with || true when loading the Tango DB.
- Explain why in the world I am starting dsconfig twice.

L2SS-218 Addressing the comment that this file could be sourced when ssh'ing into the computer and it would break ssh when printing something that is unexpected.

Merge branch 'master' of https://git.astron.nl/lofar2.0/tango into L2SS-216_2021-05-17-Branched_from_master-SDP_hotfix

L2SS-221 Sync up PCC device with pypcc a13f1643eb77d8105559a848f34cf6eaea0f6474

Closes L2SS-221

See merge request !34

This allows make to return with a non-0 code which in turn does
not force Bash to exit.  This happens when the containers where
already down and/or the volumes cleaned up.