updating after assignment for Nigel
Adding in some notes from Nigel work
Updating with the storage driver content Nigel added
Updating with Nigel's polishing tech
Adding in Nigel graphics
First pass of aufs material
Capturing Nigel's latest
Comments back to Nigel on devicemapper
Incorporating Nigel's comments v3
Converting images for dm
Entering comments into aufs page
Adding the btfs storage driver
Moving to userguide
Adding in two new driver articles from Nigel
Optimized images
Updating with comments
Signed-off-by: Mary Anthony <mary@docker.com>
