change loation of docker file & add version file

Change-Id: I2f51147e60e165b06b24e87d32fd5d23c1efba48
diff --git a/VERSION b/VERSION
new file mode 100644
index 0000000..519af9a
--- /dev/null
+++ b/VERSION
@@ -0,0 +1 @@
+6.0.0.dev