Include statusfd.txt in manifest

MANIFEST.in

@@ -4,6 +4,6 @@ include contrib/coverage.py
 include etc/mixminiond.conf etc/blacklist.conf etc/countlines.py
 include etc/mixminion.init
 include doc/mixminion.1 doc/mixminionrc.5 doc/mixminiond.8
-include doc/mixminiond.conf.5 doc/tutorial.txt
+include doc/mixminiond.conf.5 doc/tutorial.txt doc/statusfd.txt
 # Old versions of distutils miss header files
 include src/_minionlib.h