apache/spark — pull request #175 by mengxr (2014-03-19 02:24:58+00:00)
Title: [SPARK-1273] MLlib bug fixes, improvements, and doc updates for v0.9.1

Cherry-picked a few MLlib commits that are bug fixes, optimization, or doc updates for the v0.9.1 release.

JIRA: https://spark-project.atlassian.net/browse/SPARK-1273