Archiving in prep for re-theme

[lauramoore]

Time to refresh our theme, and what to do about archived sites.
This would be an opportunity to create a dedicated archives.devnexus.com host and to break apart the past years to avoid the problems we've had maintaining old pictures, colors year over year. And also stop rebuilding old sites with every change.

What would we need to do this?

• A jekyll Theme: layouts, css, that can be adapted from the current site and applied to past years.
• Do we keep the current bundle or split apart?