bug fixes

rendering/FileTexture.h

@@ -1,7 +1,7 @@
 #ifndef FILETEXTURE_H
 #define FILETEXTURE_H
 
-#include "gl/Texture.h"
+#include "wrapper/Texture.h"
 #include "images/PNGReader.h"
 
 class FileTexture final {

wrapper/GL.cpp

@@ -30,7 +30,7 @@ bool GL::checkAndPrintError(const char* message) {
             std::cout << message << ": an attempt has been made to perform an operation that would cause an internal stack to overflow\n";
             break;
         default:
-            std::cout << message << ": unknown OpenGL error '" << error << ''"\n";
+            std::cout << message << ": unknown OpenGL error '" << error << "'\n";
     }
     return true;
 }