removed redundant SPARK_WORKER_CORES env setting
Merge pull request #21 from ydavid365/patch-1

removed redundant SPARK_WORKER_CORES env setting
added debug flag for start_nameserver.sh
Removing an old leftover script for starting the nameserver
Merge pull request #22 from ydavid365/patch-2

Added debug flag for start_nameserver.sh
add spark-0.9.0 docker file
update deploy script for spark 0.9.0
add spark-0.9.0 for build
fix spark-0.9.0 build script
fix 0.9.0 version information
fix scala version to 2.10.3
fix run start-master.sh in sbin folder
fix start Worker in 0.9.0
fix start shell in 0.9.0
fix start spark-shell in 0.9.0
fix start spark-shell in 0.9.0
switch ./bin/spark-shell as default
Minor fixes to Spark 0.9.0 Dockerfiles and scripts
Allowing dnsmasq to be run as root.
Update for latest docker syntax.