Support Spark 1.3 or later

[kmaehashi]

Currently JubaQL only supports Spark 1.1.
As Spark 1.2 and 1.3 is now released, we want to run JubaQL on them.

Are there any technical difficulties to support Spark 1.2 or later?

cc: @tgpfeiffer

[tgpfeiffer]

The upcoming release of JubaQL (will be called 1.3.0) will use Spark 1.2.

As for Spark 1.3, it seems like there have been some backwards-incompatible changes to the Spark SQL component, e.g., class renames. There is a migration guide available at http://spark.apache.org/docs/1.3.0/sql-programming-guide.html#migration-guide, but as we have been working quite close to the Spark SQL internals for some features, it may become a bit tough to upgrade.

[kmaehashi]

Subject renamed.