Move src into pkg and update Makefile
This enables the package to be installed using install_github
using devtools and automates the build procedure.
Pass in SPARK_HOME and jar file path
Normalize SPARK_HOME before passing it
Only normalize if SPARK_HOME is not empty
Update README and add helper script install-dev.sh
Remove dependency on Spark Logging
Add helper script to run tests
Merge branch 'install-github'
Remove broadcastId hack as it is public in Spark
Update repo path in README