[maven-release-plugin] prepare release v0.8.0-incubating
Revert "[maven-release-plugin] prepare release v0.8.0-incubating"

This reverts commit ace08c729fab73a2c82bd599dfe51ba7b580f944.
[maven-release-plugin] prepare release v0.8.0-incubating
[maven-release-plugin] prepare for next development iteration
Revert "[maven-release-plugin] prepare for next development iteration"

This reverts commit a30a69887e2be9d7ae27539bb8d80ae90548109c.
Revert "[maven-release-plugin] prepare release v0.8.0-incubating"

This reverts commit 8edc000a8dafb517b3d00fd581082f4d92c4ec28.
[maven-release-plugin] prepare release v0.8.0-incubating
[maven-release-plugin] prepare for next development iteration
Revert "[maven-release-plugin] prepare for next development iteration"

This reverts commit d6958adb8002f8de738a43eb0bd561a4221f2dd9.
Revert "[maven-release-plugin] prepare release v0.8.0-incubating"

This reverts commit 3ffc9576faa8f98c90bc837655946368c3d1705e.
Include Scala version in published artifacts.

For Scala projects it is necessary to include the Scala version in
published artifact labels. This is convention because different Scala
versions are not binary compatible with one another. With this
commit, artifacts published with Maven will adhere to the convention
used in previous Spark releases.