mosquitto 0.14.4

Includes a test script that checks if `mosquitto -h` quits with code 3.

Closes Homebrew/homebrew#9670.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>

Formula/mosquitto.rb

@@ -1,9 +1,9 @@
 require 'formula'
 
 class Mosquitto < Formula
-  url 'http://mosquitto.org/files/source/mosquitto-0.12.tar.gz'
+  url 'http://mosquitto.org/files/source/mosquitto-0.14.4.tar.gz'
   homepage 'http://mosquitto.org/'
-  md5 'e21ecb18dc8f9c3103fab95bbf8cffc7'
+  md5 '88750338c2096671c01cf7e461d5c06d'
 
   depends_on 'cmake' => :build
 
@@ -11,4 +11,8 @@ class Mosquitto < Formula
     system "cmake . #{std_cmake_parameters}"
     system "make install"
   end
+
+  def test
+    system "mosquitto -h > /dev/null ; [ $? -eq 3 ]"
+  end
 end