Reworked translation system

-Label and Button reload translation on the fly
-Resources are loaded and reload depending on locale

core/resource.h

@@ -35,6 +35,7 @@
 #include "ref_ptr.h"
 #include "reference.h"
 #include "safe_refcount.h"
+#include "self_list.h"
 
 /**
 	@author Juan Linietsky <reduzio@gmail.com>
@@ -74,6 +75,8 @@ class Resource : public Reference {
 	friend class SceneState;
 	Node *local_scene;
 
+	SelfList<Resource> remapped_list;
+
 protected:
 	void emit_changed();
 
@@ -127,6 +130,9 @@ public:
 
 #endif
 
+	void set_as_translation_remapped(bool p_remapped);
+	bool is_translation_remapped() const;
+
 	virtual RID get_rid() const; // some resources may offer conversion to RID
 
 	Resource();
@@ -137,6 +143,7 @@ typedef Ref<Resource> RES;
 
 class ResourceCache {
 	friend class Resource;
+	friend class ResourceLoader; //need the lock
 	static RWLock *lock;
 	static HashMap<String, Resource *> resources;
 	friend void unregister_core_types();