CIC-930: Orderly add newlines when having multiple secret context sets
Delete tombstone entries in chunks
This limits the size of simultaneously loaded tombstone entries to 10k and therefore preventing overloads if the size is extremely big
Ensure IMAP folder is really not existent through dedicated LIST commands - /appsuite/platform/core#375
Use retry mechanism when encountering special optimistic concurrency conflict - /appsuite/platform/core#381
Orderly process locally held inline images to have a "Content-Id"-referencing "src" attribute - /appsuite/platform/core#382
Properly recognize guest calendar user in public folder - /appsuite/platform/core#395
Dont delete foreign folder appsuite/platform/core#396
Also allow TLDs as specified in RFC 6761 - /appsuite/platform/core#398
Ignore failure to retrieve the metadata for a \NoSelect mailbox - /appsuite/platform/core#399
Do not double URL-encode valid %XX sequences - /appsuite/platform/core#400
Use an alternative polling-based watcher for changed k8s secret - /appsuite/platform/core#402
Introduced possibility to let liveness fail, when health/readiness check failed consecutively for more than a configured duration - /appsuite/platform/core#406