update mqttd program to compatble with android app

guowenxue

6 hours ago 489b6a3c10ccaff0fd0de55b5030e2992d122a7b

 .gitignore

@@ -8,7 +8,7 @@
*.o
lib*.so*
lib*.a
mqttd
iotd

# ctags files
cscope.*