Skip transitions for invisible nodes. Fixes #2105.
Skip transitions for invisible nodes. Fixes #2105.

This is not only more efficient, but also required since it seems
transition events are not fired for invisible elements.

blueimp/jQuery-File-Upload,blueimp/jQuery-File-Upload,blueimp/jQuery-File-Upload,GrizliK1988/PhotoWidget,blueimp/jQuery-File-Upload,Verde1705/verde1705.github.io,blueimp/jQuery-File-Upload,Verde1705/verde1705.github.io,blueimp/jQuery-File-Upload