add links for spark v0.9.2 release
Merge pull request #60 from mengxr/release-0.9.2

add links for spark v0.9.2 release
Adding links for Spark v1.0.2 release
Merge pull request #63 from tdas/v3

Adding links for Spark v1.0.2 release
Merge remote-tracking branch 'mesos/v3' into v3