Add some protection against bad requests. Also bail if we can't start properly.

git-svn-id: https://www.unprompted.com/svn/projects/tildefriends/trunk@3870 ed5197a5-7fde-0310-b194-c3ffbd925b24

core/core.js

@@ -603,6 +603,8 @@ loadSettings().then(function() {
 	httpd.registerSocketHandler("/app/socket", app.socket);
 }).catch(function(error) {
 	print('Failed to load settings.');
+	print(error);
+	exit(1);
 });
 
 exports.getSessionProcessBlob = getSessionProcessBlob;