Butcher in BD joystick control scheme

indra/newview/app_settings/settings_alchemy.xml

indra/newview/llfloaterjoystick.cpp

indra/newview/llfloaterjoystick.h

indra/newview/llviewerjoystick.cpp

indra/newview/llviewerjoystick.h

indra/newview/skins/default/textures/textures.xml

indra/newview/skins/default/textures/xbox/button_a.png

indra/newview/skins/default/textures/xbox/button_b.png

indra/newview/skins/default/textures/xbox/button_back.png

indra/newview/skins/default/textures/xbox/button_start.png

indra/newview/skins/default/textures/xbox/button_x.png

indra/newview/skins/default/textures/xbox/button_y.png

indra/newview/skins/default/textures/xbox/left_button.png

indra/newview/skins/default/textures/xbox/left_thumb.png

.../newview/skins/default/textures/xbox/left_thumb_press.png

indra/newview/skins/default/textures/xbox/left_thumb_x.png

indra/newview/skins/default/textures/xbox/left_thumb_y.png

indra/newview/skins/default/textures/xbox/left_trigger.png

indra/newview/skins/default/textures/xbox/none.png

indra/newview/skins/default/textures/xbox/right_button.png