Metacat

included new servlet parameter "public" specifing public read access for the submitted document
the expected values are "yes" or "no"
public parameter is optional and if it is not specified, means "no"

fixed bug that was accidentally introduced when the change from metacatURL to URL was done.

added location info to catch statements

added precise location information (class.method) to each catch statement so that errors are more easily traced.

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.