Fix build for new artifactory

Author: hborisoff

common-methods.gradle

@@ -97,10 +97,10 @@ def publishing_task(libraryArtifactId) {
     }
 
     artifactory {
-        contextUrl = 'http://artifactory.leanplum.com'
+        contextUrl = 'https://repo.leanplum.com'
         publish {
             repository {
-                repoKey = 'libs-release-local'
+                repoKey = '/'
 
                 username = System.getenv('ARTIFACTORY_USER')
                 password = System.getenv('ARTIFACTORY_PASSWORD')