mdns: Fix the service name to make it compatible with the mDNS RFCs

Also, update the changelong -- we never released.

Change-Id: I00d5118e8d9afea60d6d24399d0cc72c3c2e4cc9
diff --git a/debian/changelog b/debian/changelog
index 176bf6a..def6ace 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,4 +1,4 @@
-mdt (0.0.1-1) unstable; urgency=low
+mdt (0.0.1-1) UNRELEASED; urgency=low
 
   * Initial release
 
diff --git a/mdt/discoverer.py b/mdt/discoverer.py
index 49afcf4..2c3597d 100644
--- a/mdt/discoverer.py
+++ b/mdt/discoverer.py
@@ -9,7 +9,7 @@
         self.zeroconf = Zeroconf()
         self.discoveries = {}
         self.listener = listener
-        browser = ServiceBrowser(self.zeroconf, "_google_mdt._tcp.local.", self)
+        browser = ServiceBrowser(self.zeroconf, "_googlemdt._tcp.local.", self)
 
     def add_service(self, zeroconf, type, name):
         info = self.zeroconf.get_service_info(type, name)