Correct bug in easyIcon when title is not a string.

Author: Holt59

src/View/Helper/BootstrapPaginatorHelper.php

@@ -185,7 +185,7 @@ public function next ($title = 'Next >>', array $options = []) {
     }
 
     public function first($first = '<< first', array $options = []) {
-        return $this->_easyIcon('parent::first', first, $options);
+        return $this->_easyIcon('parent::first', $first, $options);
     }
 
     public function last($last = 'last >>', array $options = []) {

src/View/Helper/BootstrapTrait.php

@@ -143,7 +143,7 @@ protected function _extractType ($options, $key = 'type', $default = 'info',
     **/
     protected function _makeIcon ($title, &$converted = false) {
         $converted = false ;
-        if (!$this->easyIcon) {
+        if (!$this->easyIcon || !is_string($title)) {
             return $title ;
         }
         $title = preg_replace_callback('#(^|\s+)i:([a-zA-Z0-9\\-_]+)(\s+|$)#', function ($matches) {