Adding tool to test release readiness.

Fixing minor issues with onos-upload-docs and envDefaults.

Change-Id: I6bc0ba4cebab625cd371ebbf58f356541e75b859
diff --git a/tools/build/onos-upload-docs b/tools/build/onos-upload-docs
index b98bf74..18985e8 100755
--- a/tools/build/onos-upload-docs
+++ b/tools/build/onos-upload-docs
@@ -8,7 +8,7 @@
 [ ! -d "$ONOS_ROOT" ] && echo "ONOS_ROOT is not defined" >&2 && exit 1
 . $ONOS_ROOT/tools/build/envDefaults
 
-user=${1:-jenkins}
+user=${1:-$USER}
 remote=$user@wiki.onosproject.org
 
 scp $ONOS_ROOT/docs/target/onos-apidocs-$ONOS_VERSION.tar.gz $remote:/tmp