-Changed most project settings in the engine, so they have major and minor categories.

-Changed SectionedPropertyEditor to support this
-Renamed Globals singleton to GlobalConfig, makes more sense.
-Changed the logic behind persisten global settings, instead of the persist checkbox, a revert button is now available

modules/visual_script/visual_script.cpp

@@ -2815,7 +2815,7 @@ VisualScriptLanguage::VisualScriptLanguage() {
 	_debug_parse_err_node=-1;
 	_debug_parse_err_file="";
 	_debug_call_stack_pos=0;
-	int dmcs=GLOBAL_DEF("debug/script_max_call_stack",1024);
+	int dmcs=GLOBAL_DEF("debug/script/max_call_stack",1024);
 	if (ScriptDebugger::get_singleton()) {
 		//debugging enabled!
 		_debug_max_call_stack = dmcs;