Add git scm url for publishing
Use different Hadoop version for YARN artifacts.

This uses a seperate Hadoop version for YARN artifact. This means when people link against
spark-yarn, things will resolve correctly.
Merge pull request #929 from pwendell/master

Use different Hadoop version for YARN artifacts.
Explain yarn.version in Maven build docs
Bumping Mesos version to 0.13.0
Merge pull request #931 from pwendell/yarn-docs

Explain yarn.version in Maven build docs
Merge pull request #932 from pwendell/mesos-version

Bumping Mesos version to 0.13.0
Fix typo in Maven build docs
Merge pull request #933 from jey/yarn-typo-fix

Fix typo in Maven build docs
Merge remote-tracking branch 'origin/master' into branch-0.8
Ingoring unit test with race condition (see SPARK-908).