Metacat

Implemented the 'read' API call. Some more to go...

Wrote the login() function, the first of the series of API calls for
the metacat client to be implemented. Also wrote a test class to
test the API functionality.

If uploading failed, the inline data will be deleted either.

If xml document uploading failed, the inline data file will be deleted either.

Added a new subpackage (edu.ucsb.nceas.metacat.client) which is a client
access library for the metacat. There is an interface (Metacat.java) that
provides simple access methods for the main metacat functions. This is to
support clients like Morpho and others that want to programatically access...

JAVA 1.3 doesn't support this FileWriter(File fileName, boolean append). But 1.4 does.
Change to FileWriter(String fileName, boolean append). Both 1.3 and 1.4 support.

Fixed bug in replication if doctype is null.

Fixed a bug that replication didn't do inline data.

Change a array size from 4*10(testing) to 4*1024.

Using reader replacing string to read inline data.