Move constants and packing/unpacking functionality out into trait for extensibility, readability
Rename package names to org.velvia, don't use com.github
Reorder unpacking case statements -> ~33% better unpacking performance
Clarify documentation
Some more README
Release version 0.2!

Proper namespacing (-> org.velvia)
Overridable map, seq packing and unpacking methods
Performance improvements
Bump to next dev release