review & handoff scala LDA from Alex

[malcolmgreaves]

• [x] review documentation
• [x] PR for improvements, fixes, etc.
• [ ] final code review (in person)
• [ ] publish (0.x.x) version on sonatype
• [ ] update README w/ this ^^ version + maven tag

[malcolmgreaves]

In review: https://github.com/Nitro/scalda/pull/5

[malcolmgreaves]

Doing final code review in OSF - The Neva on Friday from 10a - 1130a