Metacat

refactoring to remove duplicate code

adding a system to track system metadata documents for dataone

Added initial implementation of getSystemMetadata and its associated REST service. Current implementation is returning a hardcoded system metadata document -- need to look up the real document for each guid and return that.

Completed main parts of CrudService.create(). Now the method writes both data and metadata objects along with their system metadata, and handles the mapping between global identifiers and local identifiers. Access control and logging still need to be dealt with to properly authenticate and then log activities.

Updating build to properly clear temporary export directory before doing svn export.

Modify CrudService to write SystemMetadata to disk with an autogenerated localId and an autogenerated GUID. Validation depends on the DataONE schemas being setup in xml_catalog properly, so still need to check upgrade scripts to be sure these new schemas are added. Still need to handle the metadata document insert, but should be same as system metadata insert.

Add support for getting the DataONE schemas from SVN and copying them into metacat's schema catalog. Still need to update the oracle scripts as well.

Added comment about MIME form processing.

Refactored schema service to call doRefresh() in constructor to eliminate code duplication.

Added note on TODO for access bug.