SL-12550 Profile feed tab cleanup

Split picks and classifieds in to separate panels
Moved getProfileURL to LLAvatarActions
Removed dead XUI panels
Removed picks/classifieds floater

MAINT-7383 Revise notification for Empty Trash / Purge trash action to include number of items being deleted.

MAINT-6805 Fixed Right-click menus in the right and left panes of the Conversations windows are different

MAINT-4974 FIXED Complete name should be used in LLAvatarActions::buildResidentsString only when building name string for share confirmation dialogs

consolidated most indra-specific constants in llcommon under indra_constants.h
fixed issues with operations on mixed unit types (implicit and explicit)
made LL_INFOS() style macros variadic in order to subsume other logging methods
such as ll_infos
added optional tag output to error recorders

CHUI-194 : WIP : Update the ad-hoc conversation line item title, add a new update_session event. Still some clean up to do.

CHUI-305: Minor changes after code review. Using templated findChild() instead of getChildView(). Also using settings.xml to store common custom variables.

CHUI-305: Problem: The 'resident picker' had multiple parents and due to the design of the resident picker it can have only one parent. Having multiple parents caused both parents to fight for depth ordering...which caused the flickering. Resolution: Now multiple 'resident pickers' can exist and they are coupled to the floater that spawned then. Meaning that when the parent floater closes, the 'resident picker' floater will also close. In addition, a shadow frustum eminates from the button that opened the 'resident picker'.

CHUI-186 CHUI-187 FIX Removing a P2P convrsation from converstaion widget in the upper right corner when a new participant is added.
End call prompt removed when adding a new participant to a P2P voice call.
After adding a participant to a P2P voice conversation the resulting conference call is restarted voice invites to all participants.

- The title is updated with the data from participants list widget in IM floater.
- Creating the participants list is fixed for the case of starting the ad hoc session when the session id changes upon initialization (see LLIMConversation::buildParticipantList()).
- LLEventTimer replaced with simple LLTimer to avoid crashes in LLEventTimer::tick().
- Moved the build_residents_string() code to LLAvatarActions::buildResidentsString() to use it in LLIMFloater::onParticipantsListChanged().

CHUI-120 WIP Added starting ad hoc conference in the same floater as P2P chat, after adding more participants.
- Added a parameter to LLAvatarActions::startConference() and LLIMMgr::addSession() to pass the uuid of a P2P IM floater which should be used to start a new conference in it.
- In LLChicletBar::sessionRemoved() we don't close the IM floater if it is going to be re-used for a new conference.

STORM-1838 Add "Request Teleport" option to the menu when right-clicking on avatars in the Nearby list

It is invoked by clicking on any speaking indicator except yours.

removed unused LLWeb functions for opening non-web media
moved logic inside floaters and away from auxiliary functions

added LLAvatarActions::profileVisible and hideProfile

- The button is now enabled only if all selected items are shareable.
  (it had checked only one currently selected item)
- Eliminated some copy&paste.

Implemented major task EXT-6710(Feature request: Allow drag and drop from Inventory panel to Resident Picker)
 - added handling the drag add drop inventory items to resident picker
 - added "Share" verb button to the inventory panel which opens resident picker
 - added "Share" menu item to the individual inventory context menu which acts as verb button
Reviewed by Mike Antipov at https://codereview.productengine.com/secondlife/r/215/

--HG--
branch : product-engine

Superficial cleanup to change all typedef std::vector<LLUUID> to use a common typedef uuid_vec_t instead.

Fixed low bug EXT-6488 (Teleport menuitem is enabled for offline residents in the context menu and inspectors)

- Added a check for a teleport offer ability. In XML created a paremeter and check it in source code.

Reviewed by Leyla Farazha at https://codereview.productengine.com/secondlife/r/86/

--HG--
branch : product-engine

--HG--
branch : product-engine