Grab error message titles from locale file instead of hardcoding them

frontend/locales/english.lng

@@ -70,12 +70,14 @@ menu-admin-users;							Users
 menu-admin-containers;							VPSes
 menu-admin-nodes;							Nodes
 
-## Global warnings
+## Global warnings and errors
 error-form;								One or more problems occurred.
 warning-suspended-title;						This VPS is suspended
 warning-suspended-text;							You cannot change any configuration or perform any actions on this VPS. If you feel this should not be the case, please contact support.
 warning-terminated-title;						This VPS has been terminated
 warning-terminated-text;						You cannot change any configuration or perform any actions on this VPS, as it is terminated.
+error-suspended-title;							This VPS is suspended
+error-terminated-title;							This VPS has been terminated
 
 ## VPS overview page
 title-overview;								Overview

frontend/rewrite.php

@@ -203,17 +203,15 @@ try
 	}
 	catch (ContainerSuspendedException $e)
 	{
-		/* TODO: Grab error title from locale file? */
 		$sError .= NewTemplater::Render("{$sTheme}/shared/error/error", $locale->strings, array(
-			'title'		=> "Container is suspended",
+			'title'		=> $locale->strings['error-suspended-title'],
 			'message'	=> $e->getMessage()
 		));
 	}
 	catch (ContainerTerminatedException $e)
 	{
-		/* TODO: Grab error title from locale file? */
 		$sError .= NewTemplater::Render("{$sTheme}/shared/error/error", $locale->strings, array(
-			'title'		=> "Container is terminated",
+			'title'		=> $locale->strings['error-terminated-title'],
 			'message'	=> $e->getMessage()
 		));
 	}