Updated documentation.
Renamed Factories.java to Builders.java.
Prepared Person class for persistence.
Minor API changes.
Added "UNSPECIFIED" enum to instances of enum.
Added persistence units.
Revert "Added persistence units."

This reverts commit 5f7bc5b18d8ac3dc81e41a992824b70759d8d9ab.
Revert "Revert "Added persistence units.""

This reverts commit d9fef1a97197cd14d6fd08131e1ae322a924a501.
Added debugging properties to persistence unit.
Prepared implementation for testing.
Added new test case.
First pass to make PersistenceManager work.
First pass to get formatting with Jindent working.
Added class to test PersistenceManger.
Reworked parameterized LegalEntity.
Replaced @Table annotation with @MappedSuperclass.
Changed visibility of Person's constructor to satisfy JPA.
Added shcema to @Table definition.
Added setter for Id.
Reorganized operation order.
Modified for testing purposes.
Additions to Builder API.
Expanded testing. Still a work in progress.
Added test data files.
Added MySQL drop create sql statement PU.
Added in-memory Derby PU.
Removed redundant files and directories.