Upgrade version code 1.4.0

Author: REAndroid

build.gradle

@@ -2,7 +2,7 @@
 apply plugin: 'java'
 
 group 'com.reandroid.apkeditor'
-version '1.3.9'
+version '1.4.0'
 
 java {
     sourceCompatibility JavaVersion.VERSION_1_8