Removing site.baseurl.

baseurl is important for cross-site theme compatibility.
Unfortunately our gitlab instance provides the incorrect baseurl.

This is a hack. If the configuration gets fixed this commit should
be reverted.

_includes/footer.html

@@ -3,7 +3,7 @@
                 <div class="col-lg-12 footer">
                &copy;{{ site.time | date: "%Y"  }} {{site.company_name}}. All rights reserved. <br />
 {% if page.last_updated %}<span>Page last updated:</span> {{page.last_updated}}<br/>{% endif %} Site last generated: {{ site.time | date: "%b %-d, %Y"  }} <br />
-<p><img src="{{ "/images/company_logo.png"| prepend: site.baseurl | prepend: site.url }}" alt="Company logo"/></p>
+<p><img src="{{ "/images/company_logo.png"}}" alt="Company logo"/></p>
                 </div>
             </div>
 </footer>