Merge pull request #1938 from murgatroid99/test_version_update

Drop testing on Node 8, add 14 and 16

Author: murgatroid99

run-tests.sh

@@ -28,7 +28,7 @@ cd $ROOT
 git submodule update --init --recursive
 
 if [ ! -n "$node_versions" ] ; then
-  node_versions="8 10 12"
+  node_versions="10 12 14 16"
 fi
 
 set +ex