Jruby build should run
Enumerable.matching_document _unloaded double query fix

When there was a many to many, and the target was not loaded and target.first was called, _unloaded was calling the db twice in order to load
Dont clear persistence_options when _loading_revision [ Fixes #2743]
Update changelog
Update travis with max size
create_indexes should not fail when cannot constantize class [Fix #2758]

rake task db:mongoid:create_indexes should not fail if the name of the
file doest not match the class name