Merge pull request #359 from francisco-dlp/BUG_FIX_component_setvalue

FIXES #349: Parameter._set_value raises exception when data is np.memmap
Merge branch '0.7.x' of https://github.com/hyperspy/hyperspy into 0.7.x
RELEASE 0.7.2
Release back to dev
Release 0.8+dev
DOC: Fix wrong milestone link
BUG_FIX fail to start with scipy < 0.14
Merge pull request #361 from francisco-dlp/BUG_FIX_scipy014_required

BUG_FIX fail to start with scipy < 0.14
RELEASE 0.7.3
Fix typo
Fix typo
Change release back to dev
Merge branch '0.7.x'