Metacat

As part of a patch fix for:

http://bugzilla.ecoinformatics.org/show_bug.cgi?id=2469

I've added the complimentary setter methods to the getter methods
that are already present in the class:

setNodeId()
setNodeName()
setParentNodeId()
setNodePrefix()
setNodeIndex()...

added a method to query metacat to see if a particular docid is registered or not

finally got the getallids function working

added functionality to get a list of ids used in the system

added getalldocids function to get all docids that match a certain scope.

Added preliminary support for multiple spatial schemas in the same metacat instance .. bug 2551

Initial architecture for dynamically generating SLD/OGC:Filter documents to control which docids get shown on the map. The sldfactory servlet is in place to handle this but is not fully functional since there is currently no way to quickly and dynamically generate a list of allowable docids with a level of performance acceptable for real-time web mapping.

Merged the spatial web.xml.combined into the default web.xml.tomcat5

Updated MetaCatServlet so that it supports a web-based interface for configuring its own properties the first time it is run (determined by the property "configured" being set to false). Which properties are exposed in the web interface is determined by the list of properties in the 'metacat.properties.metadata' file. This file is managed by the new OptionsMetadata class in the utilities module, and provides information that allows metacat to build a human-readable configuration page for the properties. Still need to finish filling out the information in metacat.properties.metadata for the rest of the properties that we want to be editable. This autoconfiguration process is the first step towards building a turnkey installer for metacat....

Ensure that spatial operations are only triggered when runSpatialOption is set to true.