do not run Travis CI on macOS (#16)

bicycle1885 · web-flow · commit d9448a54eb2e · 2017-09-01T14:44:47.000+09:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,11 +1,13 @@
-# Documentation: http://docs.travis-ci.com/user/languages/julia/
 language: julia
 os:
   - linux
-  - osx
+#  - osx
 julia:
   - 0.6
   - nightly
+matrix:
+  allow_failures:
+    - julia: nightly
 notifications:
   email: false
 # uncomment the following lines to override the default test script
