splitting out the most-used event query from a more complicated occasional one
Add track_uri to track entries when retrieving a talk.
Made the category match that of init_data.sql and live - this fixes the CSS on the responsive site.
Merge branch 'lornajane-event-query-optimisation'
Merge branch 'richsage-track-uri-in-talks'
turn off html_errors for debug mode as the VMs have XDebug and the HTML isn't appropriate here
Merge branch 'magicmonkey-fix-css'
Merge pull request #52 from lornajane/no-html-errors

Set html_errors to zero; the VM has xdebug installed and we don't want the HTML markup