Refactor persistence and documentation changes

Revises the security service documentation to produce better output.
Refactored the persistence service to separate the bundled dependencies into their own ozone modules (fixing #1).
Added yuidoc grunt task to the gruntfile and including the newly added library into COPYRIGHT.txt.
Added yuidoc build task into the grunt build and clean commands.
Dropped all outdated unit tests; will be revised in a future merge.