SHARK-111: Automatically sends s3 credentials from master to slaves.
SHARK-112: ClassNotFoundException on shark-shell.
Removed CacheKey class.
Fixed RDDs to compile with Shark 0.7
Updated run script to accommodate amplab verion of hive jars.
Destroy driver properly in sql2rdd
Maven POM file for Shark, Debian packaging, and "run" script improvement

- Adding a POM file for building with Maven, both with Hadoop 1 and Hadoop 2
- Adding Debian packaging
- Updating the run script to be able to run with a fat jar (no Scala
  dependency).
Adding a hive-site.xml that specifies where to find test data files
Specifying plugin revisions and hive version
Fixing scala version, .deb file name, and jdeb settings (contributed by Thomas Dudziak)
Use the newer scala-maven-plugin
Updating Debian packaging control file
Setting Java version to 1.5 in pom.xml
Updating version to 0.3.0-SNAPSHOT
Use provided scope for dependencies (Hadoop and Hive)
Removing commented-out filter element
Removing Scala version from the artifact name
Specify hadoop1/hadoop2 classifiers for the Spark REPL dependency
Fixed fatjar and debian package build
Fixed typo