[test_auxdata.test_autoload] don't test loading AW3D30 DEMs on Travis CI
[test_auxdata.test_autoload] don't test loading AW3D30 DEMs on Travis CI

FTP access is currently not supported by Travis; see here:
https://blog.travis-ci.com/2018-07-23-the-tale-of-ftp-at-travis-ci

johntruckenbrodt/pyroSAR,johntruckenbrodt/pyroSAR