Declare constant for default quality

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@35233 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/Document/Image.py

@@ -58,6 +58,7 @@ DEFAULT_DISPLAY_ID_LIST = ('nano', 'micro', 'thumbnail',
                             'xsmall', 'small', 'medium',
                             'large', 'large', 'xlarge',)
 
+DEFAULT_QUALITY = 75
 
 class Image(File, OFSImage):
   """