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/topnav.html

@@ -60,12 +60,12 @@
                         <input type="text" id="search-input" placeholder="{{site.data.strings.search_placeholder_text}}">
                         <ul id="results-container"></ul>
                     </div>
-                    <script src="{{ "/js/jekyll-search.js"| prepend: site.baseurl | prepend: site.url }}" type="text/javascript"></script>
+                    <script src="{{ "/js/jekyll-search.js"}}" type="text/javascript"></script>
                     <script type="text/javascript">
                             SimpleJekyllSearch.init({
                                 searchInput: document.getElementById('search-input'),
                                 resultsContainer: document.getElementById('results-container'),
-                                dataSource: '{{ "/search.json"| prepend: site.baseurl | prepend: site.url }}',
+                                dataSource: '{{ "/search.json"}}',
                                 searchResultTemplate: '<li><a href="{url}" title="{{page.title | escape }}">{title}</a></li>',
                     noResultsText: '{{site.data.strings.search_no_results_text}}',
                             limit: 10,