CHUI-857 Nearby chat opens as torn off on first login: changed initial setting for nearby chat docked state

Show toasts for new messages for that conversation, regardless of other prefs.

CHUI-793 : Fixed! Introduced ChatLoadGroupTimeout and ChatLoadGroupMaxMembers to mitigate slow group loading.

CHUI-743 FIXED CHUI viewer ignores pre chui users Privacy settings to not keep IM logs and nearby chat logs

changed rate

CHUI-606 Default settings in CHUI viewer do not keep IM logs for users: Preferences > Chat > Keep a convers. log was turned on

CHUI-607: Due to a problem in design we have two checkboxes that determine whether a conversation transcript should be saved. By defaut commiting a change that makes both checkboxes checked by default. This makes it so that a new user can see their transcript/chat history.

CHUI-526: Slight bug fix. Problem was that the 'Teleport Offer' sound was turn on by default when the user cleared their settings. Resolution: Inside settings.xml changed the PlaySoundTeleportOffer to no longer have an intial value of 1 (true). Now it is 0 (false).

CHUI-580 : Fixed : Clean up the use of display name. Allow the use of the legacy protocol in settings.xml

Reviewed by VoidPointer

Reviewed by VoidPointer

CHUI-487, CHUI-488 W.I.P. #1 (Enable flashing FUI button behavior and Implement Flashing Conversations panel line item behavior): build new class LLFlashTimer based on LLSysWellChiclet::FlashToLitTimer; prepared it for general purpose; replaced LLSysWellChiclet::FlashToLitTimer to LLFlashTimer

CHUI-486: Code cleanup, instead of using values such as 0, 1, 2 now using strings 'toast', 'flash', 'none'. These values are used whether to show a notification or not.

CHUI-486: Now the new chat preferences in drop down lists and checkboxes are storable. These values are accessible globally using gSavedSettings.

CHUI-517: Updating the do not disturb message automatically sent to other users when they attempt to contact a person in do not disturb mode.

CHUI-484: Updating the code to rather than refer to it as Busy Mode, it now refers to it as Do Not Disturb mode.

MAINT-1815 Fix for excessive memory usage in Mayfair.  Disable tcmalloc.  Disable private memory pools.  Make viewer large address aware on windows.

Reviewed by Kelly

MAINT-1303 FIXED Hide menus and buttons after exiting mouselook if 'Hide all controls' is switched on.

Add logic after (both!) LLTransUtil::parseStrings() calls to ensure that
"[sourceid]" embedded in (e.g.) strings.xml content will be replaced.

We assert that the local html directory is no longer used. Remove machinery
related to its use, notably HelpUseLocal, the code that checks it and the
code that sets and examines special flag URL "__local".
Before actually killing off the local skins/default/html directory, make
viewer_manifest.py rename it but continue packaging it as html.old. If this
doesn't cause a panic, we can proceed with removing it entirely.

CHUI-190 (Remove the Voice Settings floater): removed the menu item "Communicate > Voice settings" and the FUI button (headphones) from the Toybox (Toolbox). I left a floater in the project to be able to reconnect it to a different location.