Bump version to 2.3.1

Makefile

@@ -1,6 +1,6 @@
 PROJECT = emqttd
 PROJECT_DESCRIPTION = Erlang MQTT Broker
-PROJECT_VERSION = 2.3.0
+PROJECT_VERSION = 2.3.1
 
 DEPS = goldrush gproc lager esockd ekka mochiweb pbkdf2 lager_syslog bcrypt clique jsx
 

src/emqttd.app.src

@@ -1,6 +1,6 @@
 {application,emqttd,
              [{description,"Erlang MQTT Broker"},
-              {vsn,"2.3.0"},
+              {vsn,"2.3.1"},
               {modules,[]},
               {registered,[emqttd_sup]},
               {applications,[kernel,stdlib,gproc,lager,esockd,mochiweb,