potential deprecated rpc proxy generation in the session enabled proxy

[GoogleCodeExporter]

SessionRemoteServiceProxyGenerator extends from ServiceInterfaceProxyGenerator 
but original GWT implementation uses now (in GWT 2.3 at least) 
RpcServiceGenerator. Furthermore the SessionProxyCreator extends ProxyCreator 
but RpcServiceGenerator uses proxy creator that extends RpcProxyCreator. By 
simple switch to these, there will be an exception, because 3-parameter 
constructor is generated but 4-parameter is expected.

All is located in acris-security-core module.

Original issue reported on code.google.com by ladislav...@gmail.com on 11 Feb 2013 at 9:24