upgrade hugo to 0.48

Author: adamking

Dockerfile

@@ -9,7 +9,7 @@ RUN gem install mime-types:2.0 rake cucumber capybara selenium-webdriver rspec b
 RUN gem install toml-rb
 
 #Hugo - October 2017 build
-ENV HUGO_VERSION=0.30.2
+ENV HUGO_VERSION=0.48
 ADD https://github.com/gohugoio/hugo/releases/download/v${HUGO_VERSION}/hugo_${HUGO_VERSION}_Linux-64bit.tar.gz /tmp
 RUN tar -xf /tmp/hugo_${HUGO_VERSION}_Linux-64bit.tar.gz -C /tmp \
     && mkdir -p /usr/local/sbin \