Fix memory leaks: delete font in main and GUIChatConsole

src/guiChatConsole.cpp

@@ -121,6 +121,7 @@ GUIChatConsole::GUIChatConsole(
 
 GUIChatConsole::~GUIChatConsole()
 {
+	delete m_font;
 }
 
 void GUIChatConsole::openConsole(f32 height)

src/main.cpp

@@ -2063,6 +2063,8 @@ int main(int argc, char *argv[])
 	*/
 	device->drop();
 
+	delete font;
+
 #endif // !SERVER
 	
 	// Update configuration file