Fix feature overlapping sidebar when dragged or resized.
Fix feature overlapping sidebar when dragged or resized.

The overlap is because drag / resize helper is attached to body. While
draggable has an option to attach helper to another element, resizable
doesn't. The only option thus is this hack.

Thanks to Harsh Gupta <gupta.harsh96@gmail.com> for suggesting z-index.

closes #56.

Signed-off-by: Vivek Rai <6965dcfed9719c822a5fc29f0dbf450e6c3f778e@gmail.com>

wurmlab/afra,wurmlab/afra,kimrutherford/afra,wurmlab/afra,kimrutherford/afra,kimrutherford/afra,wurmlab/afra,kimrutherford/afra,kimrutherford/afra