Rework method names.

I don't see a real use for incrementally building the hidden field list.
The code is much simpler without it, so I'll leave it off until there is
an actual use case for it.

Cake/ORM/Entity.php

@@ -302,20 +302,20 @@ public function unsetProperty($property) {
  *
  * @param array $properties The properties to hide.
  * @param boolean $reset The reset flag.
- * @return void
+ * @return Entity $this
  */
-	public function makeHidden($properties, $reset = false) {
+	public function hideProperties($properties) {
+		$this->_hidden = $properties;
+		return $this;
 	}
 
 /**
- * Remove properties from the hidden list.
- *
- * The counterpart to this method is makeHidden().
+ * Get the list of hidden properties on this entity.
  *
- * @param array $properties The properties to hide.
- * @return void
+ * @return array
  */
-	public function makeVisible($properties) {
+	public function hiddenProperties() {
+		return $this->_hidden;
 	}
 
 /**