Metacat

removed print statements

fixed typo

included implementation for public "read" access as specified from the access file

fixed introduced problem with preparedStatements

Added license terms to source code files, and cleaned up some javadoc
documentation in a few places.

Added License terms to source files, added more documentation to protocol
handler classes.

closed all preparedStatement variables

implementation for multiple <resourceIndentifier> tags under <resource>

removed dependence on MetacatURL for URL handling. Added more flexible support for identifiers in the subject and object fields. They can now be just a docid, an http url or a metacat url.

fixed bug in data file permission checking. (commited wrong file last time)