Theme gallery for plone.org (Plone 5 themes)

I'm overdue to look at these projects, multitheme and spirit (the thing that powers configuration of BarcelonetaNG) I like the benefit of easily adding theme components and configuration. The ideas here are the right direction.

... @espenmn and @tmassman you should plan to be part of the Theme sprint :slight_smile:

@espenmn the approach reminds me a bit of mobirise