updated changes log for 0.4.5.

Author: Milan Andric

Changes.md

@@ -1,5 +1,15 @@
 # Medic Mobile Release Notes
 
+## 0.4.5
+
+### May 28, 2015
+
+- Fixed bug in schedules editor for LMP (last menstrual period) based
+  schedules. #973
+    
+- Initial support for messages, records and forms API.  See
+  https://github.com/medic/medic-api/blob/master/API_v1.md
+
 ## 0.4.4
 
 ### May 21, 2015