Version bump up to 0.7.1

CHANGES

 Change log
 ==========
 
+Version 0.7.1 (2013-02-25)
+
+  - Handle 'Binary files ... differ'
+  - Document update for known issues
+
 Version 0.7 (2013-02-23)
 
   - Support reading diff or log for given files/dirs in workspace

cdiff.py

 """
 
 META_INFO = {
-    'version'     : '0.7',
+    'version'     : '0.7.1',
     'license'     : 'BSD-3',
     'author'      : 'Matthew Wang',
     'email'       : 'mattwyl(@)gmail(.)com',