Log Message:
py-djangocms-style: updated to 2.1.0

2.1.0:
Fixed a validation issue with attributes
Added support for Django 1.11, 2.0 and 2.1
Removed support for Django 1.8, 1.9, 1.10
Adapted testing infrastructure (tox/travis) to incorporate django CMS 3.5 and 4.0

2.0.2:
Ensure class ordering is maintained

2.0.1:
Prevent changes to DJANGOCMS_STYLE_XXX settings from requiring new migrations
Changed naming of Aldryn to Divio Cloud
Adapted testing infrastructure (tox/travis) to incorporate django CMS 3.4 and \ 
dropped 3.2
Updated translations