Add backwards compatibility shims

These methods are gross, but are required for backwards compatibility
with previous implementations of TimeHelper. This behavior is now
deprecated and will be removed in the next major release.

src/I18n/Time.php

@@ -433,4 +433,44 @@ public static function listTimezones($filter = null, $country = null, $options =
         }
         return array_combine($identifiers, $identifiers);
     }
+
+    /**
+     * Returns true this instance will happen within the specified interval
+     *
+     * This overridden method provides backwards compatible behavior for integers,
+     * or strings with trailing spaces. This behavior is *deprecated* and will be
+     * removed in future versions of CakePHP.
+     *
+     * @param string|int $timeInterval the numeric value with space then time type.
+     *    Example of valid types: 6 hours, 2 days, 1 minute.
+     * @return bool
+     */
+    public function wasWithinLast($timeInterval)
+    {
+        $tmp = trim($timeInterval);
+        if (is_numeric($tmp)) {
+            $timeInterval = $tmp . ' days';
+        }
+        return parent::wasWithinLast($timeInterval);
+    }
+
+    /**
+     * Returns true this instance happened within the specified interval
+     *
+     * This overridden method provides backwards compatible behavior for integers,
+     * or strings with trailing spaces. This behavior is *deprecated* and will be
+     * removed in future versions of CakePHP.
+     *
+     * @param string|int $timeInterval the numeric value with space then time type.
+     *    Example of valid types: 6 hours, 2 days, 1 minute.
+     * @return bool
+     */
+    public function isWithinNext($timeInterval)
+    {
+        $tmp = trim($timeInterval);
+        if (is_numeric($tmp)) {
+            $timeInterval = $tmp . ' days';
+        }
+        return parent::isWithinNext($timeInterval);
+    }
 }