make clear that Undefined coerced test is not an error message
changed to arel 4.0.1
fixed spelling
updated tests to be consistent with rails 4
turn format changed
changed derpecated find syntax
arel in gemsepc
removed extra spaces
arel in gemsepc
removed extra spaces
dropping support for ruby <1.9.3, removing with_kcode
Updated for Rails 4 prerelease
I suspect the DSN should be ACTIVERECORD_UNITTEST_DSN