FlashMQ 1.27.2 released

Version 1.27.2 is a security release:

Fix cross-thread memory issue in log deduplicator of retained_messages_node_creation_limit and related settings, introduced in version 1.27.1. Issue only exists when using non-default settings.
Fix incorrect topics strings in log messages about reaching retained message limits when the topic starts with a leading /.
Fix shared subscription path like '$share/sharename//two/three' being parsed as two/three instead of /two/three. Not really a security concern however, because the auth check is performed on the parsed result, and clients are free to send subscribe packets with any filter anyway.