Skip the second ESO test if the new ascii reader is being used.  See
https://github.com/astropy/astropy/issues/2940
oops, should have made sure that test was valid in the first place
Merge pull request #422 from keflavich/ascii_reader_skiptest

Skip the second ESO test if the new ascii reader is being used.  See
allow 'auth' to be sent through the _request function
MockResponse accepts auth