apache/incubator-spark — pull request #312 by pwendell (2013-12-30 07:18:26+00:00)
Title: SPARK-1008: Logging improvments

1. Adds a default log4j file that gets loaded if users haven't specified a log4j file.
2. Isolates use of the tools assembly jar. I found this produced SLF4J warnings
after building with SBT (and I've seen similar warnings on the mailing list).