Remove invalid dm 4D tests
Merge pull request #330 from francisco-dlp/Remove_dm_4D

Remove invalid dm 4D tests
Update changes
RELEASE 0.7.1
Release back to dev
Merge branch 'master' of https://github.com/hyperspy/hyperspy into NEW_fast_MAC
ENH: utils get sample MAC
Automatic style corrections courtesy of autopep8
EHN: get Sample MAC EDSspectrum
Automatic style corrections courtesy of autopep8