Add "duplicate widget area" functionality

[mattyza]

It would be great to be able to have a one-click duplication of a widget area.

For more information and context, see the following thread: http://wordpress.org/support/topic/copying-existing-sidebars?replies=1

[vincsb]

Hi @mattyza !

If it's ok for you, i'm currently work on this feature. Development can follow here : https://github.com/vincsb/woosidebars/tree/feature/duplicate

I will push my request when it is completed.

[mattyza]

That sounds great, thanks @vincsb !

I look forward to reviewing your pull request. Please do mention me in the comment once you submit it. :)