Merge pull request #3 from bigsnarfdude/master

fixed path to tutorial
Refinements to the tutorial and upgraded to Spark 1.0.1.
Added my name and email.
typos
Added the Spark SQL examples and exercises.
fixed data/README.html -> ../data/README.md
Filled in the TODO bits for the new exercises.
Updated Scaladocs links.
Fixed typo.
Merge pull request #4 from epishkin/patch-1

fixed data/README.html -> ../data/README.md
Fixed links to the data directory README.