Updated Django versions for tox tests.
Implemented quiet ignoring a delete if the item has been deleted yet. Closed #14
Added more information into SalesforceError

without changing the length of message.
Restricted unimportant debug info again after the last commit.
Preparing for multi db
Improved router in order to be more robust and more exact with syncdb and dumpdata.
Verified that 'managed=False' is not so important after the previous fix
Typography: trailing whitespaces