Merge pull request #1 from Carreau/master

a few improvement proposal
Start off a Dockerfile for tmpnb
copy suggestsions

A couple small copy suggestions, attribution for myself (US Army Engineer Research and Development Center - Coastal and Hydraulics Laboratory) and Ketcheson (King Abdullah University of Science & Technology)
hide non-plot output

using semicolons.
Initial working Dockerfile for the current nb
Merge pull request #2 from ahmadia/patch-1

copy suggestions
Merge pull request #3 from ahmadia/patch-2

hide non-plot output using semicolons
Merge pull request #4 from rgbkrk/docker_tmpnb

Docker tmpnb
Add nature logo image
Merge pull request #5 from chris-creditdesign/nature-logo

Add nature logo image
add rackspace logo