Setting version back to 6.1-SNAPSHOT temporarily

Jenkins failed while trying to publish 6.1.0 to Nexus. Will change to 6.1.0 off a release branch.

Author: rjrudin

gradle.properties

@@ -1,5 +1,5 @@
 group=com.marklogic
-version=6.1.0
+version=6.1-SNAPSHOT
 describedName=MarkLogic Java Client API
 publishUrl=file:../marklogic-java/releases