TPAC / F2F4 planning for Best Practice sub-group

Hi all-

as agreed during the teleconf this afternoon, I have created a wiki page
where we can collate the topics we need / want to discuss at TPAC.

https://www.w3.org/2015/spatial/wiki/Meetings:F2F4-best-practice-agenda-scratch-pad

Please add your thoughts over the next week or so, then we editors (Linda,
Payam & Jeremy) will create an agenda based on those topics.

I've added some topics to get us started.

Jeremy