Added property 'spark.executor.uri' for launching on Mesos without
requiring Spark to be installed. Using 'make_distribution.sh' a user
can put a Spark distribution at a URI supported by Mesos (e.g.,
'hdfs://...') and then set that when launching their job. Also added
SPARK_EXECUTOR_URI for the REPL.
Add bagel, mllib to SBT assembly.
Also add jblas dependency to mllib pom.xml
Format cleanup.
Add mllib, bagel to repl dependencies
Also don't build an assembly jar for them
write and read generation in ResultTask
Used 'uri.split('/').last' instead of 'new File(uri).getName()'.
Do not try and use 'scala' in 'run' from within a "release".
Merge pull request #749 from benh/spark-executor-uri

Added property 'spark.executor.uri' for launching on Mesos.
Merge pull request #753 from shivaram/glm-refactor

Build changes for ML lib
Merge pull request #757 from BlackNiuza/result_task_generation

Bug fix: SPARK-837
SPARK-842. Maven assembly is including examples libs and dependencies