Removed if condition for setting self.publisher from CounterEresource class
Removed if condition for setting self.publisher from CounterEresource class

ItemPublisher is listed in schema with minOccurs="0"
Not required for every field for valid Counter report
When if condition fails and self.publisher is not set various methods
such as CounterReport.write_tsv throw AttributeError exceptions because
they assume self.publisher.
Causes failure of writing and reading reports from some Counter compliant
vendors.

chill17/pycounter,pitthsls/pycounter