- Added clear() after DeletePointer() call to hopfully fix this...

replace llinfos, lldebugs, etc with new LL_INFOS(), LL_DEBUGS(), etc.

Adding a new visual param that allows users to manually adjust an offset for
how far off the ground (+ or -) their avatar's root bone is.

Supports the +-2m range people are used to adjusting in their viewers, but
new implementation should support server-generated appearances.

CHUI-580 : WIP : Change the display name cache system, deprecating the old protocol and using the cap (People API) whenever available. Still has occurence of Resident as last name to clean up.

removed special case logic for dealing with user online/offline collisions
added ability to cancel old duplicate notifications

reviewed by James

Reviewed with Leyla

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branch : product-engine

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branch : product-engine

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branch : product-engine

Also eliminated notification "ObjectGiveItemUnknownUser" because the
SLURL-based name lookup will always retrieve the user name.
Fixed a bug with ObjectGiveItem where the SLURL would be incorrect
for a group.

--HG--
branch : product-engine

--HG--
branch : product-engine

notify toast and adding record to IM history";
fixed avatar icon in IM-floater when message added to IM-session;
avoided popup of IM-tast when message added to IM-session;

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branch : product-engine

Cuts number of includes of llnotifications.h from 300+ to 40.

Fixed many more includes

Removed unnecessary "#include llinventorymodel.h" now that llinventoryobserver was split from llinventorymodel.

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branch : avatar-pipeline

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branch : product-engine

Merging revisions 2070-2084 of https://svn.aws.productengine.com/secondlife/pe/stable-2 into P:\svn\viewer-2.0.0, respecting ancestry
* Bugs: EXT-792 EXT-1519 EXT-1514 EXT-1245 EXT-1600 EXT-1535 EXT-1174 EXT-1241
* Dev: EXT-1271 EXT-1601 EXT-1154