CMS pages should be exportable

[felixc]

There are a large number of pages under https://us.pycon.org/2016/admin/cms/page/, a number of which contain information that would be great to include in the mobile app. It would be a lot easier to keep up with changes to the pages if they were exportable (like the talk schedule, speaker bios, etc. already are).

They could be exported each into their own file (Markdown?), or bundled into a giant CSV like all the other exported data (no preference on my part).

This is not critical for this year, as I can just populate the mobile app manually if necessary, but it would be nice to get as much as possible automated for future years.