Styling for progress bar
Allowing details for failed stages
Merge remote-tracking branch 'mrpotes/master'
Initialize Twitter4J OAuth from system properties instead of prompting
Remove Twitter4J specific repo since it's in Maven central
Merge pull request #577 from skumargithub/master

Example of cumulative counting using updateStateByKey
Made use of spark.executor.memory setting consistent and documented it

Conflicts:

	core/src/main/scala/spark/SparkContext.scala
Update docs on SCALA_LIBRARY_PATH
Increase SLF4j version in Maven too
Fix performance bug with new Python code not using buffered streams
Fixed PySpark perf regression by not using socket.makefile(), and improved
debuggability by letting "print" statements show up in the executor's stderr

Conflicts:
	core/src/main/scala/spark/api/python/PythonRDD.scala
Clarify that PySpark is not supported on Windows
Print exception message
Adding test script
Various formatting changes
Fixing bug where logs aren't shown
Package refactoring
Throw exception for missing resource
Fixing missed hbase dependency in examples hadoop2-yarn profile
Merge pull request #666 from c0s/master

hbase dependency is missed in hadoop2-yarn profile of examples module