TMSS-367: Add hostname to web component

Closes TMSS-367

See merge request !241

Resolve TMSS-405

Closes TMSS-405

See merge request !240

Resolve TMSS-367

Closes TMSS-367

See merge request !239

Resolve TMSS-404

Closes TMSS-404

See merge request !238

The timeout of 30 is to short. The underlying cause is not fully known
yet. But for some reason on both tmss-ua and scu the timeout of 30
causes the system to restart all the time.

In the near future TMSS on the User Acceptance environment should run
against a persistent database. For this we need to freeze our
initial migration step.

Resolve TMSS-388

Closes TMSS-388

See merge request !237

TMSS-343 Change pointing angle test values, these schould be below 2 pi radians

Closes TMSS-343

See merge request !236

TMSS-000: do not cycle test data through state, because the finished state sets the start time to now

TMSS-000: made LOFAR_DEFAULT_EXCHANGE configurable via environment. defaults to 'lofar' as it used to be

TMSS-334 Create view to derive taskblueprint status from subtask status as described in design

Closes TMSS-334

See merge request !225

Resolve TMSS-300

Closes TMSS-300

See merge request !233

TMSS-000: dockerize_TMSS needs artifacts from build_TMSS, and those are only passed from one step to the other by using "dependencies". Current gitlab CI/CD forbids use of both "dependencies" and "needs" in one step. 

Resolve TMSS-368

Closes TMSS-368

See merge request !235

TMSS-316 Review myself, update the remakemigrations.py script which have to be in sync with the 0002_populate.py

TMSS-368: JSONEditor updated to work with external referenced schema for custom properties like pointing.
Scheduling Unit edit page updated.