Merge branch 'master' into v0.3.x
Set version number to 0.3.2
Prevent including .DS_Store in the sdist
Added more Oxygen icons, and an icon for the sharedcontent plugin of django-fluent-contents
Made CmsModelList easier to extend, added is_item_visible() function
Fixed KeyError when a model has add support, but no edit support.

Fixes: #5
Fixed icon layout when a model has no permissions to add/edit.
Remove pages link in welcome module if the user has no permission.
setup.py: update trove classifiers
Merge branch 'v0.3.x'