6.0.0.rc0

This is the first release candidate of Mongoid 6.0, which supports Rails 5.

The following changes are in rc0, in addition to the changes noted for the 6.0 beta release.

Bug fixes

• MONGOID-4289 Fix cloning with embedded translations (@eric-pigeon)
• MONGOID-4300 Don't double-set a relation
• MONGOID-4304 Accept extra field for association 'touch' option (@duhast)
• Fix hbtm eager loading (@ElMassimo)

API and behavior changes

• MONGOID-4052 #only and #without methods are not scoped to specific locales, unless user explicitly does so. (@johnnyshields)
• Adjust Proxy equality methods (@marshalium)
• Criteria#map uses #pluck, not #only (@Benjamin-Dobell)

Improvements and features

• MONGOID-4301 Support $elemMatch in Matchable#matches? (@jonhyman)
• Make Proxy undef regex more precise (@marshalium)
• Incorporated Mongoid documentation into repository.
• MONGOID-4274 Add QueryChache to the docs and take out Origin references
• Improve test suite performance and ensure that new connections get closed