Metacat

The following methods should be removed from marineServlet since they are
already implemented in metacatServlet:
doGet, doPost, init

handleViewDocumentation should be removed because it is the same as the
getdocument action.

viewAbstract and handleDownload actions should be added to metacatServlet. All
new actions should be implemented in metacatServlet.

click information decoding should be moved to marineServlet out of
metacatServlet to allow for more specific coordinate decoding.

viewAbstract should be integrated into getdocumentaction

remove the init action