Metacat

Moved decision about whether to use xml_index for
query to the metacat.properties as "usexmlindex". Default
is now false. Still have some refactoring to do to remove a
few more uses of the xml_index table.

Created new printExtendedSQL function that can get the extended
return fields using only xml_nodes and not xml_index. One
step closer to eliminating the dependence ofn xml_index.

Created test class QuerySpecificationTest and started process of removing the xml_index from the QuerySpecification code. Reformatted some classes for readability.

Removed the "getdataguide" action as it was always experimental and is no longer used in metacat or morpho.

removed the 3 versions of printPackageSQL which are no longer used by metacat. This eliminates some dependency on xml_index.

Implement Harvester Registration Servlet

Additional scheduling logic

Changes to Harvester properties

Changes to log entries

Made changes in these three files so that getPrincipal returns back more details about users and groups. Users now contain userDN, user Name and user Email. Groups now contain Group name and Group description. So some function calls which returned single string array earlier now returns multiple string arrays. AuthSession.java called one of these functions - so accordingly changes were made to fix that part of the code.