CSS cleanup
let the scopes UL overflow
float scopes to the right when they overflow

IMO this looks much better than having them overflow directly beneath
the Batch Actions button
batch action form add option
Merge pull request #2746 from seanlinsley/ui/2743-scope-overflow

Properly handle index scopes overflow
Fix for box-shadow deprecation warning
Merge pull request #2760 from arturtr/patch-1

Fix for box-shadow deprecation warning
#2762: remove list style on scopes
Improve 'ja' translations
update .travis.yml
Merge pull request #2751 from WilliamZang/feature/batch_form

batch action form add option
update the docs for #2751