Add href element to the tooltip trigger
Add another "source" variable "auto"

"auto" will be either "ajax" or "content" depending on whether the URL is local
or not.

Also, removed the "url" parser argument. We can rely on href only.
Bugfix. Should be 'href' attr and fix matching.
Fix tooltip offset.

This is actually just a revert of that line to what it was before I started
tinkering with pat-tooltip integration for pat-calendar