Bumping version to 1.8-SNAPSHOT

Change-Id: Ifbc39a497bb9e41c61d9e90b7ce56aa822380b31
diff --git a/pom.xml b/pom.xml
index 8e68dbe..7721af5 100644
--- a/pom.xml
+++ b/pom.xml
@@ -25,7 +25,7 @@
 
     <groupId>org.onosproject</groupId>
     <artifactId>onos-yang-tools</artifactId>
-    <version>1.7</version>
+    <version>1.8-SNAPSHOT</version>
     <packaging>pom</packaging>
 
     <properties>