Minor css fixes, delete/pause addresses, validation fixes for nodes with 0 in address

app/Rules/FidoInteger.php

@@ -0,0 +1,33 @@
+<?php
+
+namespace App\Rules;
+
+use Illuminate\Contracts\Validation\Rule;
+
+use App\Http\Controllers\DomainController;
+
+class FidoInteger implements Rule
+{
+    /**
+     * Determine if the validation rule passes.
+	 * This will check that a number used for zone, net, host is between 1 and DomainController::NUMBER_MAX.
+     *
+     * @param  string  $attribute
+     * @param  mixed  $value
+     * @return bool
+     */
+    public function passes($attribute,$value)
+    {
+        return (is_numeric($value) && ($value >= 0) && ($value < DomainController::NUMBER_MAX));
+    }
+
+    /**
+     * Get the validation error message.
+     *
+     * @return string
+     */
+    public function message()
+    {
+        return sprintf('The number must be between 0 and %d.',DomainController::NUMBER_MAX);
+    }
+}