Fix bug in document handler

about.md

@@ -1,6 +1,6 @@
 # Haste
 
-Sharing code is a good thing, and it should be _really_ easy to do it.
+<b>Sharing code is a good thing</b>, and it should be _really_ easy to do it.
 A lot of times, I want to show you something I'm seeing - and that's where we use pastebins.
 
 Haste is the prettiest, easist to use pastebin ever made.

lib/document_handler.js

@@ -80,7 +80,7 @@ DocumentHandler.prototype.chooseKey = function(callback) {
 
 // Return a boolean indicating whether or not something can be a key
 DocumentHandler.potentialKey = function(key) {
-  return key.match(/^[a-zA-Z0-9]+(\.[a-zA-Z]+?)$/);
+  return key.match(/^[a-zA-Z0-9]+(\.[a-zA-Z]+)?$/);
 };
 
 // Generate a random key