[release-branch.go1.10] go1.10rc1

Change-Id: I49ec1e476e02d403a4b46f55ea48a9c3cee54efa
Reviewed-on: https://go-review.googlesource.com/89855
Run-TryBot: Andrew Bonventre <andybons@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Chris Broadfoot <cbro@golang.org>

VERSION

diff --git a/VERSION b/VERSION
new file mode 100644
index 0000000..a251e05
--- /dev/null
+++ b/VERSION
@@ -0,0 +1 @@
+go1.10rc1
\ No newline at end of file