Implemented validation for DateField and DateTimeField, uses a custom validation script, which currently need some work.

scripts/parsley-datefield.js

@@ -0,0 +1,32 @@
+$(document).ready(function() {
+    window.ParsleyValidator.addValidator('datefield', function (str, format) {
+        /**
+         * Modified version of micro-strptime.js.
+         * https://github.com/cho45/micro-strptime.js
+         */
+        if (!format) throw Error("Missing format");
+        fds = {
+            '%': '%',
+            'A': '[a-z]+',
+            'B': '[a-z]+',
+            'Y': '[0-9]{4}',
+            'm': '[0-9]{0,2}',
+            'd': '[0-9]{0,2}',
+            'H': '[0-9]{0,2}',
+            'M': '[0-9]{0,2}',
+            'S': '[0-9]{0,2}',
+            's': '[0-9]+',
+            'Z': 'UTC|Z|[+-][0-9][0-9]:?[0-9][0-9]',
+            'I': '[0-9]{0,2}',
+            'p': 'AM|PM'
+        };
+        // Create a regular expression from the format string, that matches a string of that format.
+        var re = new RegExp(format.replace(/%(?:([a-zA-Z%])|('[^']+')|("[^"]+"))/g, function (_, a, b, c) {
+            var fd = a || b || c;
+            var d  = fds[fd];
+            if (!d) throw Error("Unknown format descripter: " + fd);
+            return '(' + d + ')';
+        }), 'i');
+        return re.test(str);
+    }, 32).addMessage('en', 'datefield', 'The input needs to be in the correct date format.')
+});