Pydio Cells 4.0.0 Release Candidate (rc7)

This is a new Release Candidate for v4. We are getting closer to General Availability!

See previous release candidate RC5 for information about v4 major changes.

• Fixing fork deregister
• Scheduler: RPC error handling
• Fix a few forgotten messages + almost 100% Brazilian thanks to @filhocf
• Build ARM binaries from AMD build agent
• Fix keystore permissions on Windows (upgrade v3 => v4)
• Recover websocket handler errors (closed chan)
• Fix missing uuid for hash copy
• Scheduler: clean tasks/subscriber code, simplify ListJobs dao signature
• Capture context cancelled while listing endpoints in sync, allowing to stop long indexation processes
• Add mutexes on ACL internals
• Monitor zaps slices / remove the hard limit on roles listing (cherry-pick from v3)
• Avoid any login issue after upgrade by using a new local token name.
• Improve README for docker/compose/ha