Fixes bracket match in rule function

When adding a custom method e.g. "isValid[\[0-9A-Za-z\]+]" using form validation module, I found it got the wrong match "[0-9A-Za-z" as the regular expression, so I prefer using greedy match.

src/modules/behavior/form.js

@@ -403,7 +403,7 @@ $.fn.form = function(fields, parameters) {
               type          = validation.type,
               value         = $.trim($field.val() + ''),
 
-              bracketRegExp = /\[(.*?)\]/i,
+              bracketRegExp = /\[(.*)\]/i,
               bracket       = bracketRegExp.exec(type),
               isValid       = true,
               ancillary,