Exclude bintray.properties from sources
diff --git a/gradle/assemble.gradle b/gradle/assemble.gradle
index b9ca3c6..759a2a5 100644
--- a/gradle/assemble.gradle
+++ b/gradle/assemble.gradle
@@ -51,6 +51,8 @@
                 'cobertura.ser',
                 'junitvmwatcher*.properties',
                 'out',
+                'bintray.properties', // generated by the CI server
+                'gradle.properties.gz', // generated by the CI server
                 '**/*.iml',         // used by Intellij IDEA
                 '**/*.ipr',         // used by Intellij IDEA
                 '**/*.iws',         // used by Intellij IDEA