Automatic merge 1.2 branch in master (#1422)

* New versions for the stack elements

* Remove link to github repo for dashboards

* Change config example that shows how to turn off process monitoring

* Clarify meaning of spool_size and harvester_buffer_size (#1388)

* Add more info to doc about configuring TLS (#1414)

* Backport of #1375 (#1418)

A direct commit backport was not possible as too many things changed in the prospector and harvester