client/server

At some point we will want to implement COODBMS as client/server, where both client and server processes make use of the element model. This should be a very fast system if we can take full advantage of RoleML script, with a lot of work being done by each transaction. (Transactions having high overhead.) Note also that each transaction will consist of a single request from the client and a single response from the server--which will make it very fast indeed!

To this end, the Document Rolon Model has been broken out as a separate jar file--we will not want to include the server code on the client side. The expectation here is that the client itself will be very light weight.