feat(Vagrant): GDB in Vagrant Box

Closes #6
Merge pull request #7 from NemoOudeis/develop

updates provisioning, adds peer 2 configs
feat(testbed): The code for the testbed example from the C tutorial

Does not seem to work because of some gnunet missconfiguration. But at least it
is already compiling.

WIP for #3
Merge pull request #5 from vsaw/feature/3-run-the-testbed-application

feat(testbed): The code for the testbed example from the C tutorial
Merge pull request #8 from vsaw/feature/6-install-gdb-in-vagrant

feat(Vagrant): GDB in Vagrant Box
feat(Vagrant): Forward ports for remote GDB debugging

Closes #11
improves provisioning

- skips most of the installation steps if gnunet is installed
- installes gnunut and dependencies to /vagrant/res
Merge pull request #12 from NemoOudeis/improveProvisioning#9

improves provisioning
Merge pull request #13 from vsaw/feature/11-vagrant-gdb-server

feat(Vagrant): Forward ports for remote GDB debugging