Merge branch 'release/1.9.1' into develop
I _think_ this fixes my issue with namespaced model classes.  Need to
put together a reproducible test that shows failure - and then set up
issue for it in master.
Add a failing spec for Issue #77. (though the code was already fixed
by prior commit.)
Update active_record_adapter_spec.rb

Can't use new hash syntax.
Contain namespace tests within a context.
Update changelog
[ci skip]
Bump version to 1.9.2
Merge branch 'release/1.9.2'