Added an implicit converter(thanks to Johnny Wesslley) that maps the
Java java.util.Iterator and java.lang.Iterable interfaces to Scala
Lists. Also added lots more examples of Hadoop Map Reduce classes and
HBase classes in the form of executable ScalaTest files. Including an
example that runs a Map Reduce job that writes the output to the file
system and a Map Reduce job that write the same output to an HBase
table.