Link the Spark UI to the Yarn UI
fix up minor things
Exclude some private modules in epydoc
Add missing license headers found with RAT
Some doc improvements

- List higher-level projects that run on Spark
- Tweak CSS
Add Apache incubator notice to README
Updated LICENSE with third-party licenses
Merge pull request #887 from mateiz/misc-fixes

Miscellaneous fixes for 0.8
Add Apache parent POM
Merge remote-tracking branch 'mesos/master' into yarnUILink

Conflicts:
	core/src/main/scala/org/apache/spark/ui/UIUtils.scala
	core/src/main/scala/org/apache/spark/ui/jobs/PoolTable.scala
	core/src/main/scala/org/apache/spark/ui/jobs/StageTable.scala
	docs/running-on-yarn.md
Review comment changes and update to org.apache packaging
Update based on review comments. Change function to prependBaseUri and fix formatting.
Merge pull request #889 from alig/master

Return the port the WebUI is bound to (useful if port 0 was used)
Merge pull request #878 from tgravescs/yarnUILink

Link the Spark UI up to the Yarn UI
Minor spacing fix
SPARK-884: Add unit test to validate Spark JSON output

This unit test simply validates that the outputs of
the JsonProtocol methods are syntactically valid JSON.
Updating assembly README to reflect recent changes in the build.
Merge pull request #894 from c0s/master

Updating assembly README to reflect recent changes in the build.
Address Patrick's comments
Fix line over 100 chars