Reorganized core/ directory, it was too fatty already

-Removed FuncRef, since Callable makes it obsolete
-Removed int_types.h as its obsolete in c++11+
-Changed color names code

modules/regex/regex.h

@@ -31,12 +31,12 @@
 #ifndef REGEX_H
 #define REGEX_H
 
-#include "core/array.h"
-#include "core/dictionary.h"
-#include "core/map.h"
-#include "core/reference.h"
-#include "core/ustring.h"
-#include "core/vector.h"
+#include "core/object/reference.h"
+#include "core/string/ustring.h"
+#include "core/templates/map.h"
+#include "core/templates/vector.h"
+#include "core/variant/array.h"
+#include "core/variant/dictionary.h"
 
 class RegExMatch : public Reference {
 	GDCLASS(RegExMatch, Reference);

modules/regex/register_types.cpp

@@ -29,7 +29,7 @@
 /*************************************************************************/
 
 #include "register_types.h"
-#include "core/class_db.h"
+#include "core/object/class_db.h"
 #include "regex.h"
 
 void register_regex_types() {