added missing debian postinst file

debian/postinst

+#!/bin/sh
+set -e
+CONF="/etc/cc-node.conf"
+
+if [ -f "$CONF" ]; then
+    # secure the config file
+    chmod 0640 "$CONF"
+    # replace login by hostname if unset
+    if grep '\$\$LOGIN\$\$' "$CONF" >/dev/null; then
+        login=$(hostname)
+        print "*** CC-Node login : ${login}"
+        sed -e "s/\\\$\\\$LOGIN\\\$\\\$/${login}/g" -i "$CONF"
+    fi
+    # generate a random password if unset
+    if grep '\$\$PASSWORD\$\$' "$CONF" >/dev/null; then
+        password=$(cat /dev/urandom | tr -dc A-Za-z0-9 | head -c 12)
+        print "*** CC-Node password : ${password}"
+        sed -e "s/\\\$\\\$PASSWORD\\\$\\\$/${password}/g"\
+            -i "$CONF"
+    fi
+fi
+
+# Automatically added by dh_pycentral
+rm -f /var/lib/pycentral/cc-node.pkgremove
+if which pycentral >/dev/null 2>&1; then
+	pycentral pkginstall cc-node
+	if grep -qs '^cc-node$' /var/lib/pycentral/delayed-pkgs; then
+		sed -i '/^cc-node$/d' /var/lib/pycentral/delayed-pkgs
+	fi
+fi
+# End automatically added section
+# Automatically added by dh_pycentral
+rm -f /var/lib/pycentral/cc-node.pkgremove
+if which pycentral >/dev/null 2>&1; then
+	pycentral pkginstall cc-node
+	if grep -qs '^cc-node$' /var/lib/pycentral/delayed-pkgs; then
+		sed -i '/^cc-node$/d' /var/lib/pycentral/delayed-pkgs
+	fi
+fi
+# End automatically added section
+# Automatically added by dh_installinit
+if [ -x "/etc/init.d/cc-node" ]; then
+	update-rc.d cc-node defaults >/dev/null
+	if [ -x "`which invoke-rc.d 2>/dev/null`" ]; then
+		invoke-rc.d cc-node start || exit $?
+	else
+		/etc/init.d/cc-node start || exit $?
+	fi
+fi
+# End automatically added section