Updated version to 1.4 for appveyor.yml

Author: end2endzone

appveyor.yml

@@ -9,7 +9,7 @@
 #---------------------------------#
 
 # version format
-version: 1.3.{build}
+version: 1.4.{build}
 
 # you can use {branch} name in version format too
 # version: 1.0.{build}-{branch}