1.Fixed a memory leak inside XInput2 code

2.Replaced XKeycodeToKeysym with XkbKeycodeToKeysym since XKeycodeToKeysym is deprecated in newer X11 version
3.Rewrote testime.c since it was disabled after SDL_compat.c removal
4.Take into account common arguments also in testrelative.c

test/testrelative.c

@@ -41,6 +41,9 @@ main(int argc, char *argv[])
     if (!state) {
         return 1;
     }
+    for (i = 1; i < argc;i++) {
+        CommonArg(state, i);
+    }
     if (!CommonInit(state)) {
         return 2;
     }