Preparing Spark release v1.4.0-rc4

Preparing Spark release v1.4.0-rc3

Preparing Spark release v1.4.0-rc2

Preparing Spark release v1.4.0-rc1

Preparing Spark release v1.3.1-rc3

Preparing Spark release v1.2.2-rc1

Preparing Spark release v1.3.0-rc3

Preparing Spark release v1.2.1-rc3

Preparing Spark release v1.2.0-rc2

[maven-release-plugin] prepare release v1.1.1-rc2