Install scripts for Spark:
v1.1.0.g (disables multipart upload for Hadoop output formats as workaround, Enables Pyspark support)
v1.1.0.h (Same as "g" though binaries rebuilt from git repo)
First install script for Spark release 1.1.1:
v1.1.1.a (Spark's production release of 1.1.1 modified for use with EMR)