Add MantisCore in the requires array, in order to make Mantis 2.25 happy and make the install button appear in the plugins page

Author: Simone Tellini

BetterStatusColors.php

@@ -33,7 +33,7 @@ function register() {
 		$this->page = '';
 
 		$this->version = '1.0.3';
-		$this->requires = array();
+		$this->requires = array( 'MantisCore' => '2.0.0' );
 
 		$this->author = 'Simone Tellini';
 		$this->url = 'https://tellini.info';
@@ -65,4 +65,4 @@ function hooks() {
 	function resources() {
 		echo '<script src="' . plugin_file( "BetterStatusColors.js" ) . '"></script>';
 	}
-}
+}