give it a version number -- v0.9

I intend to bump it to 1.0 after adding the cmdline tools.

pyfec/fec/__init__.py

@@ -1,3 +1,21 @@
+"""
+pyfec -- fast forward error correction library with Python interface
+
+maintainer web site: U{http://zooko.com/}
+
+pyfec web site: U{http://www.allmydata.com/source/pyfec}
+"""
+
+from util.version import Version
+
+# For an explanation of what the parts of the version string mean,
+# please see pyutil.version.
+__version__ = Version("0.9.0-0-STABLE")
+
+# Please put a URL or other note here which shows where to get the branch of
+# development from which this version grew.
+__sources__ = ["http://www.allmydata.com/source/pyfec",]
+
 from _fec import Encoder, Decoder, Error
 import filefec