Delete some code that was added back in a merge and print less info in
spark-daemon
Various web UI improvements:

- Use "fluid" layout that can expand to wide browser windows, instead of
  the old one's limit of 1200 px
- Remove unnecessary <hr> elements
- Switch back to Bootstrap's default theme and tweak progress bar colors
- Make headers more consistent between deploy and app UIs
- Replace some inline CSS with stylesheets
Don't require spark home to be set for standalone mode
Print output from spark-daemon only when it fails to launch
Small tweak
Merge pull request #880 from mateiz/ui-tweaks

Various UI tweaks
Better docs
Add assmebly plug in links
Merge pull request #881 from pwendell/master

Extend QuickStart to include next steps
Merge pull request #883 from alig/master

Don't require the spark home environment variable to be set for standalone mode (change needed by SIMR)
Initial work to rename package to org.apache.spark
Small tweak to docs gradient
Update docs for new package
Remove shutdown hook to stop jetty; this is unnecessary for releasing
ports and creates noisy log messages
Add banner to PySpark and make wordcount output nicer
Fix more URLs in docs
Fix over-zealous find-and-replace in HTML
Fix some URLs
More fixes
Move some classes to more appropriate packages:

* RDD, *RDDFunctions -> org.apache.spark.rdd
* Utils, ClosureCleaner, SizeEstimator -> org.apache.spark.util
* JavaSerializer, KryoSerializer -> org.apache.spark.serializer