added spark-class and spark-executor to sbin

Signed-off-by: shane-huang <shengsheng.huang@intel.com>
add admin scripts to sbin

Signed-off-by: shane-huang <shengsheng.huang@intel.com>
moved user scripts to bin folder

Signed-off-by: shane-huang <shengsheng.huang@intel.com>
add scripts in bin

Signed-off-by: shane-huang <shengsheng.huang@intel.com>
fix path

Signed-off-by: shane-huang <shengsheng.huang@intel.com>
fix paths and change spark to use APP_MEM as application driver memory instead of SPARK_MEM, user should add application jars to SPARK_CLASSPATH

Signed-off-by: shane-huang <shengsheng.huang@intel.com>
rm bin/spark.cmd as we don't have windows test environment. Will added it later if needed

Signed-off-by: shane-huang <shengsheng.huang@intel.com>
Merge branch 'reorgscripts' into scripts-reorg
refactor $FWD variable
deprecate "spark" script and SPAKR_CLASSPATH environment variable
Deleted py4j jar and added to assembly dependency
Removed sbt folder and changed docs accordingly
ignoring tests for now, contrary to what I assumed these tests make sense given what they are testing.
Removed a repeated test and changed tests to not use uncommons jar
Merge branch 'scripts-reorg' of github.com:shane-huang/incubator-spark into spark-915-segregate-scripts

Conflicts:
	bin/spark-shell
	core/pom.xml
	core/src/main/scala/org/apache/spark/SparkContext.scala
	core/src/main/scala/org/apache/spark/scheduler/cluster/mesos/CoarseMesosSchedulerBackend.scala
	core/src/main/scala/org/apache/spark/ui/UIWorkloadGenerator.scala
	core/src/test/scala/org/apache/spark/DriverSuite.scala
	python/run-tests
	sbin/compute-classpath.sh
	sbin/spark-class
	sbin/stop-slaves.sh
spark-shell -> bin/spark-shell
run-example -> bin/run-example
pyspark -> bin/pyspark
a few left over document change
Merge branch 'master' into spark-1002-remove-jars