Deal with AR 3.0 and 3.1 bug that cattr_accessor + :instance_accessor => false still creates an instance_accessor
[rails4] "config.eager_load is set to nil. Please update your config/environments/*.rb files accordingly:"
We support Rails 4
1.9.2 out, 2.0.0 in
Rails 4 does not support Ruby 1.8
Rails 3.0 and 3.1 won't work under Ruby 2.1