Added test service. Echo server supports multipart msg.
Merge pull request #3 from renepickhardt/master

first draft of the timeout dispatcher
Merge branch 'master' of github.com:HeinrichHartmann/RequestDispatcher
Added Echo Server Test.
refactored some of the timeout logics included also a hashmap that maintines callback ids to services
Merge branch 'master' of github.com:heinrichhartmann/RequestDispatcher