Use julia 1 instead of release

ranjanan · ranjanan · commit f2a28c6c1b45 · 2020-04-03T18:53:06.000-04:00
diff --git a/.travis.yml b/.travis.yml
@@ -3,7 +3,7 @@ language: julia
 os:
   - linux
 julia:
-  - release
+  - 1
 notifications:
   email: false
 git:
