Updated changelog

CHANGELOG.rst

@@ -1,6 +1,10 @@
 A note on versioning: This librarys major version will grow with the APIs 
 version number. Breaking changes will be avoided as far as at all possible.
 
+v1.0.4
+------
+ * Fixed an app creation bug (Thank you, @tylerb@mastodon.social)
+
 v1.0.3
 ------
   * Added support for toot privacy.
@@ -8,7 +12,7 @@ v1.0.3
 v1.0.2
 ------
   * Removed functions and documentation for APIs that have been removed
-  * Documentation is now vastly improved thanks to @lydia / girlsim
+  * Documentation is now vastly improved thanks to @lydia@mastodon.social / girlsim
   * Rate limiting code - Mastodon.py can now attempt to respect rate limits
   * Several small bug fixes, consistency fixes, quality-of-life improvements