Sail

What's Changed
* Ray cluster address fix for SAIL AutoML.
* build file update and version bump.
* pipeline serialisation update.
* skmultiflow removed.


**Full Changelog**: https://github.com/IBM/sail/compare/v0.4.1...v0.6.4

What's Changed
* incremental training update by dhavalsalwala in https://github.com/IBM/sail/pull/47
* AutoML examples update by dhavalsalwala in https://github.com/IBM/sail/pull/48


**Full Changelog**: https://github.com/IBM/sail/compare/sail-0.3.1...v0.4.1