Configure Maven to perform releases
Conform to Sonatype's "Central Sync Requirements"
Include scala version in artifactId
Mark kafka:0.7.2-spark as an externally provided dependency
Release v0.7.1
Update development version to 0.7.2-SNAPSHOT
Merge pull request #588 from pwendell/branch-0.7

Spark-742: TaskMetrics should not employ per-record timing.
Actually use the cleaned closure in foreachPartition
SPARK-738: Spark should detect and squash nonserializable exceptions
Removing unnecessary map
Changing technique to use same code path in all cases
Removing import
Small fix
Capturing class name
Merge remote-tracking branch 'origin/branch-0.7' into branch-0.7
Make Maven artifactIds constant
Build Hadoop1 variant of Spark by default
Fix Hadoop2 build. Enable with -Dhadoop.version=2
Update run script to find updated JARs
Fix generation of *-javadoc.jar files