**breaking** mini-ndn: re-design

refs: #5062

Everything is now done through examples like Mininet.
bin/minindn no longer provided as a binary installed in the system
bin/minindnedit GUI: will no longer be maintained
Remove cluster edition, will be re-introduced later

Change-Id: Id4ef137cb2a04d1b0dd24d01941757363bbf7d26
diff --git a/minindn/__init__.py b/minindn/__init__.py
new file mode 100644
index 0000000..2b8877c
--- /dev/null
+++ b/minindn/__init__.py
@@ -0,0 +1 @@
+__version__ = '0.5.0'