there is no 'apache' container, but there is an 'nginx' one
Merge pull request #518 from SvenDowideit/update-web-container-example

there is no 'apache' container, but there is an 'nginx' one
Put a console on ttyS1.
Switch git url to https.
Change ftp to http.
Move all copy operations from make_iso.sh to Dockerfile.
Use alternate debian mirror and fix RUN/COPY lines for legibility.
Merge pull request #529 from fdawg4l/MoveCopiestoDockerfile

Move copiesto dockerfile
Fix a few minor issues with the Dockerfile (both for buildability and cacheability)
Merge pull request #532 from tianon/minor-dockerfile-tweaks

Fix a few minor issues with the Dockerfile (both for buildability and cacheability)
VBox guest additions. Refs #282
Update VBox Additions code with some minor changes (especially for cache-ability)