Add option to FPF to insert generic "an error has occured" message to forms that failed validation

[david]

Don't forget to support i18n

[david]

Or maybe it just runs a slot that then displays stuff or whatever? :)

[david]

Moving to 1.2. Current plan:

• XPath based like ((multi_)?field)?error_messages
• value is two params "module" and "action", pointing to an action to run as a container
• this container then outputs the data
• it gets passed error info, module and action names etc
• that way, you can build generic and concrete errors using a targets fallback structure in layouts... simply have a MyActionErrorInfo.fragment.php in the templates dir etc, done, works, otherwise, it shows a default "operation could not be completed, please check the error messages below" template...