Trying to import an organization, when there is an existing organization with the same name, fails with

Caught NoMethodError:undefined method `first' for nil:NilClass while processing following line:
{"organization"=>"Richlands", "organization_id"=>"2000"}

The problem (I think) is in base.rb

      rescue RestClient::UnprocessableEntity => ue
        error " Creation of #{to_singular(entity_type)} failed."
        errs = JSON.parse(ue.response)['errors']
        uniq = errs.first[0] if errs.first[1].is_a?(Array) && errs.first[1][0] =~ /must be unique/

If 'errs' is nil, the uniq= fails.

To reproduce:

1) Export orgs from Sat5, containing some org, "Foo"
2) In Sat6, create Foo via webui
3) hammer import organization --csv-file /users/csv/containing/Foo
4) Boom.

Need to fix for GA - running into already-named orgs is not unlikely, we need to respond more responsibly