Renaming 1.12-SNAPSHOT to 2.0-SNAPSHOT in preparation for release.

Change-Id: Iafae6d8a575059f956a702ff7537d7aebd1d7dab
diff --git a/model/pom.xml b/model/pom.xml
index a1eb884..1660531 100644
--- a/model/pom.xml
+++ b/model/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.onosproject</groupId>
         <artifactId>onos-yang-tools</artifactId>
-        <version>1.12-SNAPSHOT</version>
+        <version>2.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>onos-yang-model</artifactId>