Update buildVersion

Author: gamma

build.gradle

@@ -9,7 +9,7 @@ apply from: 'javapreprocessor.gradle'
 group = 'de.inetsoftware'
 
 def LIB_GRADLE_VERSION = System.getenv('LIB_GRADLE_VERSION') ?: '3.5'   // Gradle version for the wrapper
-def buildVersion = '2'                                                  // build version
+def buildVersion = '3'                                                  // build version
 def baseVersion = '2.0'                                                 // Base Version to build, depends on gradle version.
 
 version = baseVersion