revert to 0.1.6-SNAPSHOT, ready to publish 0.1.6 to Maven Central

Author: pdurbin

pom.xml

@@ -10,7 +10,7 @@
 
   <groupId>io.gdcc.export</groupId>
   <artifactId>croissant</artifactId>
-  <version>0.1.7-SNAPSHOT</version>
+  <version>0.1.6-SNAPSHOT</version>
   <packaging>jar</packaging>
   <name>Croissant Exporter for Dataverse</name>
   <description>Croissant is a high-level format for machine learning datasets.</description>