Incubator-mxnet: Cross-build the scala package to scala 2.11

[ctongfei]

[yzhliu]

Mind giving more details?

[ctongfei]

Currently the scala-package of mxnet only supports Scala 2.10.
The newest version of Scala is 2.11, and 2.12 will be out in a few months. Scala 2.10/11/12 are NOT binary compatible, meaning the jars cannot be shared across Scala versions.
It's good if something can be set in the pom.xml or build.sbt to enable cross-building to Scala 2.11 (and potentially 2.12 in the near future).

[yzhliu]

We have switched scala version to 2.11.8 recently (in order to support macro). Also you can use scala-package/dev/change-scala-version.sh to change the scala version easily.

[ctongfei]

Thanks. I suppose that I can build it myself then.
On Maven Central the only version listed there is still 2.10.
It'd be good if mxnet for Scala 2.11 is pushed to Maven Central.

[yzhliu]

We're still working on some new features, will push it soon.

[ctongfei]

thanks :-)