Metacat

The generateId method somethimes couldn't generate a unique id if you put them
into a big for loop. So i added append to a random number at the end. It works wll

Add delete method in inserting spatial data.

Add new method to keep inserting spatial data.

Fixed exception handler

Removed the debugMessage method which was removed from MetacatUtil class.

Eliminated the 'release' ant tag from the rest of the files. The 'release' property is still used in build.xml for creating releases, but the filter is no longer presnt. Now, when updating the metacat files for a release, you have to set the release version in both the build.xml and the metacat.properties files.

fixed bugs in teh client that were preventing the lsid service from working right

fix to the earlier commit. the code was dependent on 1.5. this one isnt

fix to the generateDocid() function so that the docid generated always is bigger than the earlier one.

Added new function getLastDocid to the metacat client so that it is
accessible to clients that need it.