Merge branch 'full-rewrite' into 'develop'

examples/random_node.py

examples/shed.py

main.py

pydtn/__init__.py

pydtn/buffer.py

pydtn/communities/__init__.py

pydtn/communities/base.py

pydtn/communities/kclique.py

pydtn/communities/louvain.py

pydtn/community.py

pydtn/core.py

pydtn/network.py

pydtn/node.py

pydtn/packet.py

pydtn/routers/__init__.py

pydtn/routers/base.py

pydtn/routers/bubble.py

pydtn/routers/community.py

pydtn/routers/direct.py

pydtn/routers/epidemic.py