Make use of devflow building system

devflow.conf

+[ packages ]
+  [[ snf-image-creator ]]
+    version_file = "image_creator/version.py"

image_creator/__init__.py

@@ -31,6 +31,6 @@
 # interpreted as representing official policies, either expressed
 # or implied, of GRNET S.A.
 
-__version__ = '0.3'
+from image_creator.version import __version__
 
 # vim: set sta sts=4 shiftwidth=4 sw=4 et ai :

image_creator/version.py

+__version__ = "0.3"
+__version_info__ = ['0', '3']
+__version_vcs_info__ = {'branch': 'master',
+ 'revid': 'ef30380',
+ 'revno': 294,
+ 'toplevel': '/home/skalkoto/src/snf-image-creator'}
+__version_user_info__ = "skalkoto@darkstar.admin.grnet.gr"

version

+0.3