Merge pull request #609 from ashawley/jekyll-fatal-warnings

Fix #607 make Travis fail on Jekyll warnings

Author: SethTisue

.travis.yml

@@ -18,6 +18,6 @@ install:
 script:
 - bundle exec jekyll build 2> error.log
 - cat >&2 error.log
-- ( ! grep -qie Error error.log )
+- ( ! grep -qie Error -e Warn error.log )
 - find ./_site \( -type d \( -name events -o -name training \) -prune -false \) -o \( -type f ! -name error.log -empty \)
 - find ./_site \( -type d \( -name events -o -name training \) -prune -false \) -o \( -type f ! -name error.log -empty \) | ( ! read )