Update version.py and ChangeLog for v0.8.1

ChangeLog

+2015-02-05, v0.8.1
+	* Fix a bug in the wizard that terminated the program unexpectedly
+
 2015-01-05, v0.8
 	* Support locally mounting the image on the host system
 	* Add option for running user defined scripts in the image's root after

image_creator/version.py

 
-__version__ = "0.8"
+__version__ = "0.8.1"
 __version_vcs_info__ = {
-    'branch': 'master',
-    'revid': 'ea04ad1',
-    'revno': 654}
+    'branch': 'hotfix-0.8.1',
+    'revid': '27ddd5e',
+    'revno': 657}
 __version_user_email__ = "skalkoto@grnet.gr"
 __version_user_name__ = "Nikos Skalkotos"