Rename address:merge to address:purge, included merging file/echo subscriptions, updated web subscription cannot add echos to deleted ftns

app/Http/Controllers/SystemController.php

@@ -284,6 +284,7 @@ class SystemController extends Controller
 			->leftjoin('zones',['zones.id'=>'addresses.zone_id'])
 			->where('addresses.system_id',$o->id)
 			->where('zones.domain_id',$request->domain_id)
+			->withTrashed()
 			->FTNorder()
 			->get()
 			->map(function($item) { return ['id'=>(string)$item->id,'value'=>$item->ftn3d]; });
@@ -390,6 +391,9 @@ class SystemController extends Controller
 		if (($request->method() == 'POST') && $request->post()) {
 			session()->flash('accordion','echoarea');
 
+			if ($ao->trashed() && collect($request->get('id'))->diff($ao->echoareas->pluck('id'))->count())
+				return redirect()->back()->withErrors(sprintf('Address [%s] has been deleted, cannot add additional echos',$ao->ftn3d));
+
 			// Ensure we have session details for this address.
 			if (! $ao->session('sespass'))
 				return redirect()->back()->withErrors('System doesnt belong to this network');