Metacat

got a better version of paging working. still needs to be cleaned up and debugged more.

Fix bug that if there is a search value is different to others, the query wouold work.

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....

Added servlet mapping that allows PATHINFO to be passed to the metacat servlet for use in URL handling for READ action.

transfer to value to upper case.

Added new feature to allow metacat documents to be retrieved from a URL that does not use the query url syntax, instead embedding the docid and qformat in the url path, as in this example:
http://localhost:8180/knb/metacat/test.1.1/knb
This format allows clients to read documents without entering a query URL, which will be used in a subsequent step to allow search engines to better index metacat content.

Decreased the debug message priority to 'debug' level for messages when reading an XML document.

Fixed bug that modified query wasn't add.

Add some new constance

Add method to handle union operator.