multiple fixes

.gitignore

@@ -1,2 +1,2 @@
-CMakeLists.txt.user
-build/
+*.user
+build*

CMakeLists.txt

@@ -9,7 +9,6 @@ set(EXEC_SRC_LIST src/main.cpp)
 
 #set compilation option
 set(IS_LIBRARY True)
-set(USE_OPENGL True)
 set(USE_SFML True)
 
 include(../cmaketemplate/template.cmake)

src/main.cpp

@@ -49,6 +49,7 @@ int main()
 //			cout << "test " << action << endl;
 //		window->display();
 //    }
+	cerr << "Successfully ended" << endl;
     return 0;
 }