Merge pull request #801 from pwendell/print-launch-command

Print launch command [Branch 0.8 version]
Merge remote-tracking branch 'origin/master' into branch-0.8
Merge remote-tracking branch 'origin/master' into branch-0.8
Merge remote-tracking branch 'origin/master' into branch-0.8
Merge remote-tracking branch 'origin/master' into branch-0.8
Merge remote-tracking branch 'origin/master' into branch-0.8
Fix spark.io.compression.codec and change default codec to LZF
Merge branch 'master' into branch-0.8
Updating versions
Merge pull request #918 from pwendell/branch-0.8

Update versions for 0.8.0 release.
Merge branch 'master' into branch-0.8
Merge remote-tracking branch 'origin/master' into branch-0.8
Add developerConnection tag in git
Merge remote-tracking branch 'origin/master' into branch-0.8
Bumping Spark version for RC3
Use http git for apache releases
[maven-release-plugin] prepare release v0.8.0-incubating-rc3
[maven-release-plugin] prepare for next development iteration
Removing 'rcX' from version and some formatting changes.
[maven-release-plugin] prepare release v0.8.0-incubating