Merge branch 'master' of gh:apenwarr/afterquery

* 'master' of gh:apenwarr/afterquery:
  Convert bool columns to numbers when charting.
  Add afterquery.exec(), which calculates a grid but doesn't render it.
  getUrlData() is now run as part of the queue.
  Change enqueue()/runqueue() to avoid global variables.
  wvtest.js: bare minimum changes to make it work with MacOS jsc command.