batmanjs/batman — pull request #763 by nickjs (2013-07-11 16:04:52+00:00)
Title: Conditional addclass-error bindings in formfor.

@RichardBlair was running into an issue where the automatically created `data-addclass-error` was overriding his custom `data-addclass-error`. This makes it so that the implicit one isn't added if an addclass binding already exists for `error`.

@SoapyIllusions @kristianpd