Metacat

remove httpclient 3.1 and custom-built httpclient.jar
rework MetacatClient (and other classes) to use httpclient 4
updated build to not create httpclient.jar
encoding tests now pass.

formatting

removed system.outs

removed CrudService dependency on servlet params. CrudService is now a singleton. I'm getting an error from metacat saying it can't find teh systemmetadata schema, even though it is, in fact, registered with metacat. need to identify why this is happening.

Refactored putObject method to separate the create() and update() portions in order to match the method signatures needed for DataONE.

Fixed bug in getNextRevision() where "error" documents were not being
detected properly before searching for the next identifier.

Added initial support for arbitrary string identifiers in metacat (referred to as a guid). The new identifier table is used to map arbitrary string identifiers to Metacat's current docid format (referred to as the localId). Added a new IdentifierManager class to manage this table, adding new mappings as objects are added to the system. Modified the MetacatTest service to utilize this mapping table to look up a localId from a guid. IdentiferManagerTest is working with these guids now, as is the MetacatTest service get() method, but other parts of the system are unaware of them (e.g., create, update, delete operations are unaware, and no mapping is created when new documents are created). As a consequence, the MetacatRestClientTest is not working (although it also had lots of hardcoded dependencies that need to be fixed as well).

Merging in REST interface implementation that was created by Serhan Akin. Main change is
a refactored MetaCatServlet.java class, in which all of the handle* methods were moved
into a separate MetacatHandler.java class. This allows both the standard MetaCatServlet...

add getaccesscontrol and setaccess api calls

change AccessControlForSingleFile to only be instantiated for one file. move ACL methods to AccessControlForSingleFile. Change format of access sections returned to EML 2.1.0.