Merge in lenny work

doc/contributions.txt

indra/cmake/PNG.cmake

indra/llimage/llpngwrapper.cpp

indra/llimage/llpngwrapper.h

indra/newview/llappviewer.cpp

indra/newview/llcofwearables.cpp

indra/newview/llsidepanelappearance.cpp

indra/newview/llstatusbar.cpp

indra/newview/llstatusbar.h

indra/newview/llviewerobject.cpp

indra/newview/skins/default/xui/de/floater_about_land.xml

indra/newview/skins/default/xui/en/floater_about_land.xml

...ewview/skins/default/xui/en/floater_day_cycle_options.xml

...ewview/skins/default/xui/en/panel_group_info_sidetray.xml

indra/newview/skins/default/xui/en/panel_profile.xml

indra/newview/skins/default/xui/en/panel_status_bar.xml

indra/newview/skins/default/xui/es/floater_about_land.xml

indra/newview/skins/default/xui/es/strings.xml

indra/newview/skins/default/xui/fr/floater_about_land.xml

indra/newview/skins/default/xui/it/floater_about_land.xml