Override bintray version if already existing

(state: bintray upload works fine)

Author: debuglevel

build.gradle

@@ -91,7 +91,7 @@ bintray {
     key = System.getenv('BINTRAY_API_KEY')
     publications = ['javaMaven']
     publish = true
-    //override = true
+    override = true
     pkg {
         repo = 'maven'
         name = 'sparkmicroserviceutils'