Fixing network client

Group members: David Bohn, Luca Keidel, Fabian Reimeier, Friedrich Ueberreiter

Currently it is not really possible to join a remote session using the MainRemote Application of the project (at least it does not really work as expected). The fix for this issue should streamline the process of connecting to a FUCoin-network without creating a new supervisor and all that stuff, that leads to a new network. Therefore the Join procedure should be investigated and the MainRemote Application adjusted. This should be of high priority to thoroughly test the upcoming algorithms.