Turn off email notifications from Travis - whoops

Author: jiahao

.travis.yml

@@ -5,7 +5,8 @@ julia:
     - 0.4
     - nightly
 sudo: false
-email: false
+notifications:
+    email: false
 script:
     - if [[ -a .git/shallow ]]; then git fetch --unshallow; fi
     - julia -e 'Pkg.clone(pwd())'