doc: trying to get search working. Searching for www works beter now: * no more javscript errors in console * search context blocks are displayed Had to add role="main" as that is used by the javascript to id the body of the page to extract text snippets. Had to set script_files to load all the needed javascript in order. Had to set data-url_root on a id'ed tag for javacript to work. On doc/_templates/layout.html replaced div with main tag and set id and duplicate role="main" for use by js querySelector.

<!--
 This is the default body that is displayed when people visit the
 tracker. The tag below lists the currently open issues. You may
 replace it with a greeting message, or a different list of issues or
 whatever. It's a good idea to have the issues on the front page though
-->
<span tal:replace="structure python:db.issue.renderWith('index',
    sort=[('-', 'activity')], filter=['status'],
    columns=['activity','title','creator'],
    filterspec={'status':['1','2','4']})" />