Mudança no protocolo CHATASKPERMISSION para aceitar solicitacoes de chat 1 pra N.
Implementacao de Protocol Objects para lidar com os protocolos CHATASKPERMISSION e CHATDENIESPERMISSION.
Merge branch 'OneServer' of https://github.com/ramirezjpdf/tp2014-2_Chat into OneServer

Conflicts:
	ChatBroker/src/br/ufrj/tp/protocol/ProtocolManager.java