Metacat

JUnit tests for ClientViewHelper. Includes tests for logging in, logging out, downloading a single data file, and downloading a package zip file.

Fixed a bug that Option wasn't initialized.

Add a new test to test new query method with qformat.

Add more test (update) on upload

Delete a test for printAttributeQuery which was delete from java file.

Test file for query group.

A query client to test metacat performance

Added a new class called Sitemap that is used to generate a series of XML documents representing the URLs of metacat documents following the sitemap protocol. The Sitemap class extends TimerTask so that it can be scheduled to run once a day or so. New configuration options were added to metacat.properties to control where the sitemaps are written and hw often they are updated. By default we do it once a day, as more often is overkill for search engines....

Currently every MetacatClientTest will generate new doicd and the the docid will be reused. So it will generate problem. I add new method to persistent the doicd in a file and this problem was fixed.

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