Metacat

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 delay in insertSpatialDocs test to avoid buildIndex conflict

Fix errors in workflow scheduler unit test

Beef up comments

Add access api test and supporting files

handle ben's change to the metacat client read api because it returns inputstream now

Change location of PropertyService to properties directory

Change MetaCatVersion to MetacatVersion

Fix references to db classes that were moved and refactoring missed.