Revert "Change tested version from 4-6 to 6-8 since Babel dropped support"

vhfmag · vhfmag · commit 521018e90842 · 2019-04-18T12:42:49.000-03:00
This reverts commit 0dcc5bd.
diff --git a/.travis.yml b/.travis.yml
@@ -1,8 +1,8 @@
 language: node_js
 node_js:
+  - 4
+  - 5
   - 6
-  - 7
-  - 8
 cache:
   yarn: true
   directories:
