Drop Node v4 and add v10

v4 reached end of life on 2018-04-30. v10 was released recently. v9 will reach end of life in June, but we can keep it for now.
7 years ago · 326ad46d59
1 changed files with 1 additions and 1 deletions
--- a/.travis.yml
+++ b/.travis.yml
@ -1,7 +1,7 @@
				@@ -1,7 +1,7 @@
 language: node_js
 node_js:
-  - "4"
  - "6"
  - "8"
  - "9"
+  - "10"