Fix appveyor test failure
Fix appveyor test failure

- Use explicit PYTHON_ARCH and MINICONDA path. Sym links may not exist
after `conda update -q conda`
- Fix WARNING: could not import _license.show_info

carlthome/librosa,r9y9/librosa,r9y9/librosa,carlthome/librosa,r9y9/librosa,carlthome/librosa