#828 adjustments to account for GitHub Pages limitations

Author: rjzupkoii

Gemfile

@@ -3,7 +3,6 @@ source 'https://rubygems.org'
 group :jekyll_plugins do
   gem 'jekyll'
   gem 'jekyll-feed'
-  gem 'jekyll-last-modified-at'
   gem 'jekyll-sitemap'
   gem 'jemoji'
   gem 'webrick', '~> 1.8'

_config.yml

@@ -299,18 +299,16 @@ timezone: Etc/UTC # http://en.wikipedia.org/wiki/List_of_tz_database_time_zones
 plugins:
   - jekyll-feed
   - jekyll-gist
-  - jekyll-last-modified-at  
   - jekyll-paginate
-  - jekyll-redirect-from
   - jekyll-sitemap
   - jemoji
 
 # Mimic GitHub Pages with --safe
 whitelist:
+  - jekyll-feed
+  - jekyll-gist
   - jekyll-paginate
   - jekyll-sitemap
-  - jekyll-gist
-  - jekyll-feed
   - jemoji
 
 

_includes/footer.html

@@ -21,5 +21,5 @@
 
 <div class="page__footer-copyright">
   &copy; {{ site.time | date: '%Y' }} {{ site.name | default: site.title }}, {{ site.data.ui-text[site.locale].powered_by | default: "Powered by" }} <a href="http://jekyllrb.com" rel="nofollow">Jekyll</a> &amp; <a href="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/academicpages/academicpages.github.io">AcademicPages</a>, a fork of <a href="https://mademistakes.com/work/minimal-mistakes-jekyll-theme/" rel="nofollow">Minimal Mistakes</a>.<br />
-  This page last updated {% last_modified_at %Y-%m-%d %}
+  Site last updated {{ "now" | date: '%Y-%m-%d' %}}
 </div>