Update change log

Author: michaelklishin

ChangeLog.md

@@ -1,3 +1,24 @@
+## Changes Between 1.2.0 and 1.3.0
+
+### Unicode Encoding for Files
+
+ISO 8859-1 is no longer the implicitly used encoding when loading
+properties files.
+
+Contributed by aisamu.
+
+### Clojure 1.6 By Default
+
+The project now depends on `org.clojure/clojure` version `1.8.0`. It is
+still compatible with Clojure 1.6 and if your `project.clj` depends on
+a different version, it will be used, but 1.8 is the default now.
+
+We encourage all users to upgrade to 1.8, it is a drop-in replacement
+for the majority of projects out there.
+
+Contributed by ZarifJS.
+
+
 ## Changes Between 1.1.0 and 1.2.0
 
 ### Keywords Support