Merge branch 'DRTVWR-559' of https://github.com/secondlife/viewer

indra/llinventory/llsettingssky.cpp

indra/newview/app_settings/settings.xml

...newview/app_settings/shaders/class1/deferred/cloudsF.glsl

.../app_settings/shaders/class1/windlight/atmosphericsF.glsl

indra/newview/llfloaterenvironmentadjust.cpp

indra/newview/llfloaterfixedenvironment.cpp

indra/newview/llpaneleditsky.cpp

indra/newview/llreflectionmapmanager.cpp

indra/newview/llsettingsvo.cpp

indra/newview/llspatialpartition.cpp

indra/newview/llspatialpartition.h

indra/newview/llviewermenu.cpp

indra/newview/llvowater.cpp

indra/newview/pipeline.cpp

indra/newview/pipeline.h

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