delete wire hook

[petronic]

It would be usefull if you can add $component_name as parameter in bp_wire_post_deleted hook/action.

Something like this:
do_action( 'bp_wire_post_deleted', $wire_post->id, $wire_post->item_id, $wire_post->user_id, $component_name );

Patch attached. Thanks.

[apeatling]

(In [1913]) Fixes #1051 props petronic