following promotion of DRTVWR-544

SL-18151 [SEC] MOAP can force multiple floaters open on users screen: The Viewer part of the fix for this JIRA - pulls in the updated Dullahan that exposes the user_gesture/is_redirect flags and uses them to determine what type of 'nav_type' is exchanged with viewer/plugin

Don't add popup to the list twice

Make notifications modal. When multiple ones are visible, first popup works, interacting with second one causes a crash. And it shouldn't be possible to change anything in floater when these notifications are visible

Viewer was drawing empty "indicator_stack" over description

# Conflicts:
#	indra/newview/llpanelpicks.cpp
#	indra/newview/llpanelprofile.cpp

following promotion of DRTVWR-483

Fixed unlabeled fields in picks: For consistency purposes and for clarity both picks and classifieds should display title and descriprion labels.
Fixed extra large spacing in classifieds

Reverts part of SL-15746

# Conflicts:
#	indra/newview/llpanelface.cpp
#	indra/newview/llpanelface.h
#	indra/newview/llpanelobject.cpp

following promotion of DRTVWR-561

1. text_params, not text_aprams, due to this viewer was reusing same params and failing to create mTitleCtrl
2. All ctrls should be owned.

SL-17691: Color changes on objects cause octree rebuilds

Approved-by: Andrey Lihatskiy

SL-17691: Consolidate calls to onDrawableUpdateFromServer to reduce false positives, change mServerDrawableUpdateCount from U64->U32

and at LLFolderViewItem::postBuild for LLConversationViewParticipant

mImageBar and mImageFill are specified as optional

According to bugsplat node was null