SAIL Release 0.6.4

What's Changed

• Ray cluster address fix for SAIL AutoML.
• build file update and version bump.
• pipeline serialisation update.
• skmultiflow removed.

Full Changelog: v0.4.1...v0.6.4

SAIL Release 0.4.1

What's Changed

• incremental training update by @dhavalsalwala in #47
• AutoML examples update by @dhavalsalwala in #48

Full Changelog: sail-0.3.1...v0.4.1