Cloudfront support! [#2]

Lol this issue sat around for a long time because I thought it'd be
onerous and it turned out to be trivial
Merge branch 'cloudfront' into 4.1
Better markup in album view [#25]

* article, not div
* images are in a ul
Merge branch 'ul-in-album-view' into 4.1
Factor out common layout code [#24]
Rename templates for better syntax detection
Add twitter-bootstrap and some color adjustments [#24]
Make the view- and add-image pages look nice [#24]
Page's titles should be in a h2 at the top [#24]
View-album page shows the album name [#26]
Documentation for cloudfront support [#2]
Merge branch '4.1'