Metacat

Added new upload function which takes InputStream as input.

fixed some bugs in document update

Added method to metacat client for reading inline data - readInlineData()

Fixed a bug in upload function. For online data updates, access was not checked.

Fixed handling of various docid formats.

Code added to handle errors resulting from following urls:
http://metacat.nceas.ucsb.edu/knb/metacat?action2 - no action specified
http://metacat.nceas.ucsb.edu/knb/metacat?action=insert - no docid specified
http://metacat.nceas.ucsb.edu/knb/metacat?action=login - no username specified...

Added check for null condition so that proper error text is returned to user.

Checked to be sure the instance has been initialized in the getDBCOnnection
static method call. Assuming it has been initialized could (and does)
lead to NullPointerExceptions when used outside of the metacat servlet
if the conneciton pool isn't initialized properly.

Reformatted code for readability. It was crazy. Still has problems, but its
better. Will be working on some new methods on monday.

Fixed a bug in access handling when no access is specified.