Refactoring for help / info screen

[GoogleCodeExporter]

This snippet from DecalWall.java should be refactored to a screen overlay when 
pressing "I". The user should be notified having this opportunity by a bottom 
line of text "Press I for key bindings." that is permanently visible.

        case Keys.I:
            Log.out("Key Info (I):");
            Log.out("ESC = quit demo");
            Log.out("----------------------");
            Log.out("A, D = move cam left / right");
            Log.out("W, S = move cam forward / backward");
            Log.out("Q, E = yaw (turn) cam left / right");
            Log.out("U, J = pitch cam up / down");
            Log.out("H, K = roll cam counter-clockwise / clockwise");
            Log.out("N, M = orbit cam around origin (TODO: player) counter-clockwise / clockwise");
            Log.out("C, SPACE = print cam / player position");
            Log.out("----------------------");

Original issue reported on code.google.com by radiok...@gmx.de on 16 Aug 2011 at 10:56

[GoogleCodeExporter]

im not interested in keyboard stuff since im mainly focused on android. have a 
look at stage/2d ui if you want to do this...

Original comment by dc.pik...@gmail.com on 21 Aug 2011 at 11:36