Drop 0.4 testing

mykelk · web-flow · commit 4e1132271e14 · 2018-02-13T11:27:30.000-08:00
diff --git a/.travis.yml b/.travis.yml
@@ -2,7 +2,6 @@ language: julia
 sudo: required
 dist: trusty
 julia:
-  - 0.4
   - 0.5
   - 0.6
   - nightly
