Metacat

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.

Change from assert to assertTrue.

Change assert to assertTrue.

Change assert to assertTrue

A new class to testing subtree class.

Merge cvs branch replication to cvs head.

Change the test case order.

Change some debug message.

Change package name of this class.

Change package name. Factor of docid change from 10000 to 100000.