Manual blender for use in day editing dialog.

indra/llinventory/llsettingsbase.cpp

indra/llinventory/llsettingsbase.h

indra/llinventory/llsettingsdaycycle.cpp

indra/llinventory/llsettingsdaycycle.h

indra/newview/llenvironment.cpp

indra/newview/llenvironment.h

indra/newview/llfloatereditextdaycycle.cpp

indra/newview/llfloatereditextdaycycle.h

indra/newview/llfloaterfixedenvironment.h

indra/newview/llpaneleditsky.h

indra/newview/llpaneleditwater.h

indra/newview/llpanelenvironment.cpp

...wview/skins/default/xui/en/floater_edit_ext_day_cycle.xml

...newview/skins/default/xui/en/floater_fixedenvironment.xml