Origin/command line

-Function to return a local or global object by its index instead the ID, O(1)
-changed the Handle constructor Handle() to initialize index and id with -1 instead 0.
-added toString() to the interface IHasHandle
-changed the initialization of World::lastAllocatedIndex[] to -1 instead 0. It was doing the first object be allocated at position 1 instead 0.
-added a test to avoid to send local objects over the network