2017-07-04 LHCbSys v42r5

This version uses Gaudi v28r2 and LCG_82 with ROOT 6.08.06.

This version is released on 2017-patches branch.

Change to release notes format

As from this release, the file LHCbSys/doc/release.notes is frozen
Instead, there will be a file per release in the new ReleaseNotes directory. e.g. this file is called ReleaseNotes/v42r5.md

New or changed functionality

[MR !757] Support automatic Turbo unpacking in streamed data
meaning data with a RootInTES like /Event/<stream>/Turbo, which is what the data now looks like in 2017.

[MR !728] Add packers for CaloAdc and CaloDigit objects

[MR !747] Add KillSourceIDMask to bankKiller
Until now we could only filter on an exact sourceID. This is not sufficient to kill all HltSelReports banks in case there are multiple banks. Now there is an AND mask, and a bank is killed when KillSourceID != 0 && (KillSourceIDMask & sourceID == KillSourceID). The default behaviour is unchanged.

[MR !748] Bank killer based on line requests and decisions
- Add a trivial tool HDRFilterTool that implements the functionality of HDRFilter in a tool.
- Add a new algorithm DecisionBankKiller that given a set of lines (via the tool above) and a service that keeps track of line requests, leaves only the union of banks requested by fired lines.
- This MR implements the functionality needed for the selective raw bank persistence in TURBO, see LBHLT-164.

[MR !741] Add support for overlays on Git CondDB

Bug fixes

[MR !753] Fix memory leak in CaloHypo
Fixes the memory growth observed in the Tesla validation production: https://lblogbook.cern.ch/Operations/27129

[MR !752] Bug fixes for ReportConvertTool, potentially solving Stripping/Tesla segfaults
Fixes the decoding of ProtoParticle and MuonPID HltObjectSummaries
Fixes also some unprotected debug() and untested StatusCode

[MR !742] Fix Upgrade tag names handling in CondDB configurable
Do not prepend upgrade/ to tags if not needed

[MR !736] Correctly protect debug messages in GitEntityResolver

[MR !730] Fixes for Git CondDB
- Make the code forwards & backwards compatible with gaudi/Gaudi!290 (same as MR !665)
- Fixed configuration backward compatibility with COOL
- Protected debug() messages

[MR !723] Fix calculation of number of banks in HltPackedDataWriter

[MR !719] Fix Velo decoder crash on missing bank
Occurs when trying to decode TAE data when there is none

Monitoring changes

[MR !731] Print out used CondDB tags even if global output level is not INFO

Changes to tests

[MR !732] Increase slightly memory threshold of fsralgs.mergesmallfiles test failure
- Move to Git CondDB had pushed the test over threshold
- Also, suppress compilation warnings from Boost headers

[MR !711] Improve forwards and backwards compatibility of TurboConf
Overhaul TurboConf so that is will be easier to maintain in 2017 and 2018, whilst preserving backwards compatibility with 2015 and 2016.