Python ALS example
remove unused thread pool
Merge pull request #381 from squito/remove_threadpool

remove unused thread pool
Adding default command line args to SparkALS
Fixed index error missing first argument
Use only one update function and pass in transpose of ratings matrix where appropriate
Warn users if they run pyspark or spark-shell without compiling Spark
Merge branch 'master' of github.com:mesos/spark
changed HttpBroadcast server cache to be in spark.local.dir instead of java.io.tmpdir
Merge pull request #382 from fanuo/master

HttpBroadcast server cache by default in spark.local.dir instead of java.io.tmpdir
Fix code that assumed spark.local.dir is only a single directory
Clarifying log directory in EC2 guide
Added accumulators to PySpark
Launch accumulator tests in run-tests
Add a class comment to Accumulator
Fix Python guide to say accumulators are available
Changes based on Matei's comment
Merge pull request #385 from pwendell/ec2-guide-fix

Clarifying log directory in EC2 guide
Merge pull request #376 from MLnick/python-als

Python ALS example
Minor formatting fixes