DC: add 3d scaling to gpu section

Change-Id: I1ee7b6e54132338531496fdf3fc3ce75402ea31c
DC: change the way the action processor works

Change-Id: I3be820daa75377c7a738973f8f8b186c19fd7a81
DC: add more actions to the wizard

Change-Id: Ic6897233dbf004eb1f799dd211d26891b526b1ea
DC: wizard: go back one page on back button press, do not exit activity

Change-Id: I692409a224d4d4329da295ae373c52f6c51d836f