Update version for 1.3.0-rc0 release

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
diff --git a/VERSION b/VERSION
index 99188f0..2d04904 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.2.50
+1.2.90