Starting snapshot 2.1.0-SNAPSHOT

Change-Id: If6348de3336a236f2ca7315b1e7d644d90a818f7
diff --git a/tools/build/bazel/variables.bzl b/tools/build/bazel/variables.bzl
index ca2147a..943c1d0 100644
--- a/tools/build/bazel/variables.bzl
+++ b/tools/build/bazel/variables.bzl
@@ -1,4 +1,4 @@
-ONOS_VERSION = "2.0.0-SNAPSHOT"
+ONOS_VERSION = "2.1.0-SNAPSHOT"
 ONOS_ARTIFACT_BASE = "onos-"
 ONOS_GROUP_ID = "org.onosproject"
 ONOS_ORIGIN = "ONOS Community"