Add links to VMWare players
Add links to VMWare players, minor grammar
Rename property files with .default suffix

Using default suffix on properties files, and requiring users to copy
them for the tutorial ensures that users actually edit the files, and
also reduces the chances of local edits being committed to git
accidentally. Updated config files, quickstart.
Make minor fixes, reword experiments
Merge pull request #3 from rbrewer/rbrewer-edits

Robert's updates to the tutorial