Made version a property of the actual module.

Updated setup.py to use this version property so there is only one
source of truth.

muskrat/__init__.py

@@ -0,0 +1 @@
+__version__ = '1.0.1'

setup.py

@@ -1,16 +1,16 @@
 """
 " Copyright:    Loggly
 " Author:       Scott Griffin
-" Last Updated: 01/14/2013
 "
 """
 from setuptools import setup
+from muskrat import __version__
 
 setup(
     name='Muskrat',
     author='Scott Griffin',
     author_email='scott@loggly.com',
-    version='0.1dev',
+    version=__version__,
     packages=['muskrat', 'muskrat.tests'],
     long_description=open( 'README.md' ).read(),
     install_requires=open( 'requirements.txt' ).read().split()