Deleted py4j jar and added to assembly dependency
Removed sbt folder and changed docs accordingly
ignoring tests for now, contrary to what I assumed these tests make sense given what they are testing.
Removed a repeated test and changed tests to not use uncommons jar
Merge branch 'master' into spark-1002-remove-jars
fixed review comments
Restored the previously removed test
Changes on top of Prashant's patch.

Closes #316
Merge remote-tracking branch 'apache-github/master' into remove-binaries

Conflicts:
	core/src/test/scala/org/apache/spark/DriverSuite.scala
	docs/python-programming-guide.md
Merge pull request #329 from pwendell/remove-binaries

SPARK-1002: Remove Binaries from Spark Source

This adds a few changes on top of the work by @scrapcodes.