add APPNAME and VERSION defines

src/gui/Window.cc

@@ -72,7 +72,7 @@ bool Window::create()
     }
 
     m_window = SDL_CreateWindow(
-            "jes",
+            APPNAME,
             SDL_WINDOWPOS_UNDEFINED,
             SDL_WINDOWPOS_UNDEFINED,
             INITIAL_WIDTH,

src/jes.cc

@@ -4,7 +4,7 @@
 
 int main(int argc, char * argv[])
 {
-    Runtime::init(argv[0], "jes");
+    Runtime::init(argv[0], APPNAME);
 
     Window w;
     if (!w.create())