Set version to 2.7-SNAPSHOT to match gerrit master

Change-Id: I184996420e0686c1c1d76cc51baccae0a1044a78
diff --git a/pom.xml b/pom.xml
index ae348e7..1e41f00 100644
--- a/pom.xml
+++ b/pom.xml
@@ -22,7 +22,7 @@
   <groupId>com.googlesource.gerrit.plugins.reviewnotes</groupId>
   <artifactId>reviewnotes</artifactId>
   <packaging>jar</packaging>
-  <version>1.0-SNAPSHOT</version>
+  <version>2.7-SNAPSHOT</version>
   <name>reviewnotes</name>
 
   <properties>