Fixed typo in CHANGELOG.md

CHANGELOG

@@ -3,7 +3,7 @@ v 5.3.0
   - Campfire service added
   - HipChat service added
   - Fixed bug with LDAP + git over http
-  - Fixed bug with googla analytics code being ignored
+  - Fixed bug with google analytics code being ignored
   - Improve sign-in page if ldap enabled
   - Respect newlines in wall messages
   - Generate the Rails secret token on first run