Store dev environment images on disk, not S3

# Why?

 * Originally, I was using S3 on development environment to debug S3 issues.
 * We don't have many S3 issues anymore
 * New developers have trouble setting up S3

# What Changed?

 * We will save images on disk if it is a local dev setup (not prod / staging)
Align the elements of a hash literal if they span more than one line.