Release 1.4.0-RC1

gradle.properties

@@ -1,4 +1,4 @@
-version=1.4.0-SNAPSHOT
+version=1.4.0-RC1
 org.gradle.jvmargs=-Xmx3g -XX:+HeapDumpOnOutOfMemoryError
 org.gradle.parallel=true
 org.gradle.caching=true