Updated the version to 3.1.1.

Author: redboltz

CHANGELOG.md

@@ -1,3 +1,7 @@
+# 2018-08-28 version 3.1.1
+
+  * Fix msgpack_timestamp type mismatch bug (#726)
+
 # 2018-08-10 version 3.1.0
 
   * Improve documents (#687, #718)

README.md

@@ -1,7 +1,7 @@
 `msgpack` for C/C++
 ===================
 
-Version 3.1.0 [![Build Status](https://travis-ci.org/msgpack/msgpack-c.svg?branch=master)](https://travis-ci.org/msgpack/msgpack-c) [![Build status](https://ci.appveyor.com/api/projects/status/8kstcgt79qj123mw/branch/master?svg=true)](https://ci.appveyor.com/project/redboltz/msgpack-c/branch/master)
+Version 3.1.1 [![Build Status](https://travis-ci.org/msgpack/msgpack-c.svg?branch=master)](https://travis-ci.org/msgpack/msgpack-c) [![Build status](https://ci.appveyor.com/api/projects/status/8kstcgt79qj123mw/branch/master?svg=true)](https://ci.appveyor.com/project/redboltz/msgpack-c/branch/master)
 
 It's like JSON but smaller and faster.
 

appveyor.yml

@@ -1,4 +1,4 @@
-version: 3.1.0.{build}
+version: 3.1.1.{build}
 
 image:
 - Visual Studio 2015

include/msgpack/version_master.h

@@ -1,3 +1,3 @@
 #define MSGPACK_VERSION_MAJOR    3
 #define MSGPACK_VERSION_MINOR    1
-#define MSGPACK_VERSION_REVISION 0
+#define MSGPACK_VERSION_REVISION 1