Documentation and dependencies for v50r0 release

This makes a tiny attempt to organize the merge requests into release notes.

Notice that with respect to previous Moore or Hlt release notes, these are organised in sections according to which area is affected rather than a generic new/fixed/cleanup categorization. This works as for this release everything is new but for the next one we might split each section into new/fixed/...

assigned to @apearce

Comments on how we should write release notes are very welcome. Here I've tried some minimal "squashing" of combining "fix feature X, !1115 (merged)" with "introduce feature X, !1111 (closed)" wherever obvious. My NN classifier is relatively simple :)

changed milestone to %v50r0

The structure looks nice, one line per MR by default and combine MRs that tweak the same feature in a single line (referencing both MRs in that case)

One issue I have though (problem I've been fighting in Brunel since ever) is that many of the relevant changes are in fact not in Moore but in LHCb and Rec. With Brunel I've been trying to cherry pick from the LHCb and Rec (and even Gaudi) release notes all the relevant changes and add them to Brunel. I think it's useful to have them all in one place but it's very time consuming and also somewhat arbitrary what gets selected (I don't really see how it could be automated).

Like it a lot and LGTM, great effort @rmatev

Could consider linking %HLT1 demonstrator.

• [2019-10-09 00:07] Validation started with lhcb-sanitizers#395
• [2019-10-09 00:07] Validation started with lhcb-test-throughput2#177
• [2019-10-09 00:11] Validation started with lhcb-lcg-dev3#1045
• [2019-10-09 00:11] Validation started with lhcb-tdr-test#698
• [2019-10-09 00:11] Validation started with lhcb-lcg-dev4#1057
• [2019-10-09 00:12] Validation started with lhcb-head#2393
• [2019-10-09 00:14] Validation started with lhcb-gaudi-head#2411
• [2019-10-09 13:15] Validation started with lhcb-gaudi-merge#830

resolved all threads

approved this merge request

merged

mentioned in commit aa43ca2f

mentioned in issue #598 (closed)