Server:
Changed name of servlet to ManagerServlet.
Changed method that the servlet was sending back information.

Client:
Changed the sending of the metadata so that it was being sent via a post
method rather than being sent via parameters.
Changed getClientName in InfoGatherer to return a proper hostname.
Changed the ClientFX UI to be a single vbox. Planning on adding a status
label everytime the client gets a response.

General:
Minor name changes.