Disable email notification for Travis.
Disable email notification for Travis.

They kill my inbox.

Signed-off-by: David Calavera <b9b0c8e7f90ecf337f6797c4d2e0f1dd0dbc0324@gmail.com>

dopry/netlify-cms,netlify/netlify-cms,Aloomaio/netlify-cms,Aloomaio/netlify-cms,netlify/netlify-cms,netlify/netlify-cms,netlify/netlify-cms,dopry/netlify-cms