adds python implementations

- more README
- fix some C++ code along the way

service1.py

@@ -0,0 +1,21 @@
+#!/usr/bin/env python
+
+import sys
+
+if __name__ == "__main__":
+    print("Start server")
+
+    while True:
+        with open(sys.argv[1]) as fin:
+            datas = fin.readline()
+
+        data = datas.strip()
+        print("Received: <",data,">", file=sys.stderr)
+
+        with open(sys.argv[2], 'w') as fout:
+            fout.write(data)
+
+        if data == "exit":
+            break
+
+    print("Stop server", file=sys.stderr)