v8.0.0a9

[integration]

*TransformationSystem

FIX: (#5612) fix bug in TransformationCleaningAgent, that was NOT removing jobs but only deleting them

*WorkloadManagementSystem

FIX: (#5612) removing jobs instead of deleting them when bulk submission fails
CHANGE: (#5570) better logging output in the JobStateUpdate

*WorkloadManagement

FIX: (#5610) Return error if JobPolicy.getControlledUsers returns an empty list
FIX: (#5603) Don't run JobsStateMachine if newStat is ''
FIX: (#5595) UnicodeDecodeErrors in JobDB.getJobParameters
FIX: (#5585) Error logging when optimisation fails

*FrameworkSystem

FIX: (#5609) Cleaning old installations from a Python 3 based server
FIX: (#5604) Issue installing DIRAC and extensions on servers running Python 3
FIX: (#5583) display correctly the help in sysadmin-cli
CHANGE: (#5571) allow DIRAC AS return proxy by default

*ConfigurationSystem

FIX: (#5608) ServiceInterface.py - use ThreadPoolExecutor instead of ThreadPool to avoid thread leaks in the ConfigurationServer
CHANGE: (#5596) do not add the master CS first in the list of CS when new slaves are added

*Test

FIX: (#5605) fix typo in the HTTPs Resources tests

*Core

FIX: (#5594) Extension ordering in DIRACScript

*Resources

FIX: (#5586) cloudinit-template - allow time in the monitor for the pilot to start
FIX: (#5586) cloudinit-template - set DIRACSYSCONFIG to point to the pilot.cfg in order to allow its use in the user applications

*docs

CHANGE: (#5573) move the ConfReference DIRAC section part to dirac.cfg and add there OAuth 2 settings.
FIX: (#5572) update nginx installation instruction
NEW: (#5540) add documentation with information about new system APIs component

Align WebApp installation manual with last changes (using BaseRequestHandler in WebAppDIRAC 5.0).
The request Accounting -> Network -> Packet lost rate (magnified) causes an error:

ERROR: (#5569) Error while generating the plots Value keys 100 - IF(SUM(PacketLossRate)/SUM(entriesInBucket)*10 > 100, 100, SUM(PacketLossRate)/SUM(entriesInBucket)*10), 100 are not defined

This RP should provide correct pattern.

*Accounting

FIX: (#5569) provide correct pattern for reportMagnifiedPacketLossRate