Move Linux client & common packages into a public repo.

cmd/relaynode/debian/gen-changelog

@@ -0,0 +1,25 @@
+#!/bin/sh
+read junk pkgname <debian/control
+read shortver <../../version/short.txt
+git log --pretty='format:'"$pkgname"' (SHA:%H) unstable; urgency=low
+
+  * %s
+  
+ -- %aN <%aE>  %aD
+' . |
+python -Sc '
+import os, re, subprocess, sys
+
+first = True
+def Describe(g):
+  global first
+  if first:
+    s = sys.argv[1]
+    first = False
+  else:
+    sha = g.group(1)
+    s = subprocess.check_output(["git", "describe", "--", sha]).strip().decode("utf-8")
+  return re.sub(r"^\D*", "", s)
+
+print(re.sub(r"SHA:([0-9a-f]+)", Describe, sys.stdin.read()))
+' "$shortver"