Merge pull request #105 from jasvir99/dirty

Removing depreciation warning. In Django 1.8, forms without "exclude" attribute is not allowed.
surcharge in models of catalog modified
Merge remote-tracking branch 'upstream/dirty' into dirty
Merge pull request #106 from shagun30/dirty

surcharges of catalog modified
error was removed
Merge pull request #107 from shagun30/dirty

error was removed