Core: Fix normalization for rangelength attribute value

This regressed at some point, probably when rules-as-data-attributes where
introduced, since those are automatically parsed as JSON. For the unprocessed
attributes, the array brackets have to be removed.

Also fixes the milk demo, which specified rangelength as the message, instead of
minlength, which it actually uses.

Fixes jquery-validation#1087

Author: jzaefferer

demo/milk/index.html

@@ -76,7 +76,7 @@
 			},
 			password: {
 				required: "Provide a password",
-				rangelength: jQuery.validator.format("Enter at least {0} characters")
+				minlength: jQuery.validator.format("Enter at least {0} characters")
 			},
 			password_confirm: {
 				required: "Repeat your password",

src/core.js

@@ -985,7 +985,7 @@ $.extend($.validator, {
 				if ( $.isArray(rules[this]) ) {
 					rules[this] = [ Number(rules[this][0]), Number(rules[this][1]) ];
 				} else if ( typeof rules[this] === "string" ) {
-					parts = rules[this].split(/[\s,]+/);
+					parts = rules[this].replace(/[\[\]]/g, "").split(/[\s,]+/);
 					rules[this] = [ Number(parts[0]), Number(parts[1]) ];
 				}
 			}

test/index.html

@@ -155,6 +155,15 @@ <h2 id="qunit-userAgent"></h2>
 			<input name="testForm12text" id="testForm12text" data-rule-required="true" />
 		</form>
 
+		<form id="testForm13">
+		<select id="cars-select" name="cars" title="Please select at least two cars, but no more than three" required rangelength="[2,3]" multiple="multiple">
+				<option value="m_sl">Mercedes SL</option>
+				<option value="o_c">Opel Corsa</option>
+				<option value="vw_p">VW Polo</option>
+				<option value="t_s">Titanic Skoda</option>
+			</select>
+		</form>
+
 		<form id="dataMessages">
 			<input name="dataMessagesName" id="dataMessagesName" class="required" data-msg-required="You must enter a value here" />
 		</form>

test/rules.js

@@ -296,3 +296,11 @@ test("rules(), add messages", function() {
 	$("#firstnamec").valid();
 	equal(v.errorList.length, 0);
 });
+
+test( "rules(), rangelength attribute as array", function() {
+	$("#testForm13").validate();
+	deepEqual( $("#cars-select").rules(), {
+		required: true,
+		rangelength: [2,3]
+	});
+});