Update Messages for 0.3.1 Release

- Add '0.3.1.md' for 0.3.1 release
- Updates 'messages.json'

Author: stephenfin

messages.json

@@ -1,4 +1,5 @@
 {
     "install": "README.rst",
-    "0.3.0": "messages/0.3.0.md"
+    "0.3.0": "messages/0.3.0.md",
+    "0.3.1": "messages/0.3.1.md"
 }

messages/0.3.1.md

@@ -0,0 +1,22 @@
+Changes in 0.3.0
+================
+
+- Add option to target specific folders when building CTags
+  * Add quick panel menu to allow building of tags for open file (or parent
+    folder of open file if recursive flag set), all open folders, or one of
+    the open folders
+
+Fixes
+=====
+
+* Fills up entire hard drive (in Linux), #94
+
+Resolves
+========
+
+* Add method to select where tag file should be built, #164
+
+*******************************************************************************
+
+For more detailed information about these changes, run ``git v0.3.0..v0.3.1``
+on the Git repository found [here](https://github.com/SublimeText/CTags).