DRTVWR-493 Reworked a number of inits

indra/newview/llappviewer.cpp

indra/newview/lldonotdisturbnotificationstorage.cpp

indra/newview/lldonotdisturbnotificationstorage.h

indra/newview/llfeaturemanager.cpp

indra/newview/llfeaturemanager.h

indra/newview/llpersistentnotificationstorage.cpp

indra/newview/llpersistentnotificationstorage.h

indra/newview/llstartup.cpp

indra/newview/llviewerwindow.cpp

indra/newview/llvocache.cpp

indra/newview/llvocache.h

indra/newview/llvoiceclient.cpp

indra/newview/llvoiceclient.h