Clean up MoeObject further and add documentation.

* Use the implicit constructor with a default to reduce complexity
* Add scaladoc to methods and class
* Rename some variables to be more descriptive
* Use named parameters in methods, since this is one of those libraries
  that needs to be read by others and it will change often. Future
  proofing!
Add build.sbt instead of shipping libs (credit to @non in #2) and fix a
warning.
Merge pull request #10 from gphat/master

Mo' MoeObject cleanup