v2.5.6-rc1

Superdesk AAP

• fixes to BANG to tolerate badly formed XML
• Build fix depricated docker compose command, fix pip and setuptools version
• SDAAP-116 fix remove anchors macro to stop it removing comments on embeds
• fix apple formatter handling null editor associations
• SDAAP-122 Handle fancy quotes in ANPA
• SDAAP-123 Escaped Markup being included in headlines
• Fix SMS report tests
• SDAAP-117,SDAAP-118 Generate broadcast news content from Superdesk

Superdesk Core

*Cherry pick logging fix
*Cherry pick fix error when parsing exif on media upload (#2474) (#2673)
*SDAAP-112 Stop the generation of html on the server throwing an exception (#2671)
*update conflicting dependencies
*update celery
*fix websocket notifications not being delivered (#2442)
*Chore update celery kombu (#2439)
*fix hotfix build (#2672)

Full Changelog: v2.5.5-rc2...v2.5.6-rc1