* Opening new inventory via Control-Shift-I shortcut uses legacy and potentinally dangerous code path
* Closing new inventory windows don't release memory
* During shutdown legacy and inoperable code for inventory window cleanup is called
* Remove old and unused inventory legacy code

MAINT-3842 FIXED Using "Close Window" (Ctrl + W) shortcut while in Appearance mode doesn't visually revert any changes...

SH-4035: Hooked up logic to handle 'me->appearance'. Refactored out some commonly used code in llfloatersidepanelcontainer

SH-4035: Removed prompt to save if av just has outfit changes. Hooked up logic to handle ctrl+w and ctrl+shift+w confirmation prompts

cleaned up logic when closing floatersidepanels

SH-3312 FIX - closing floater with outfit edit now has same behavior as explicitly leaving outfit edit with backarrow

EXP-1840 FIXED (When two inventory windows are open and "properties" are viewed, one window suddenly moves in front of the other window)

- Modified method LLFloaterSidePanelContainer::openChildPanel so that it doesn't open floater each time it's called. Otherwise each time opening child panel of already opened floater, openFloater() will reposition the floater.

- Added a floater for People side tab.
- Replaced calls to LLSideTray with LLFloaterSidePanelContainer.

- Added xml for a new floater Appearance and registred it in the floaterreg

- Removed side tray dependencies

- Added static helper method: LLFloaterSidePanelContainer::getPanel

- Replaced calls to LLSideTray with LLFloaterSidePanelContainer.
- Added LLFloaterSidePanelContainer::getPanel<T>() for getting custom type panels.

- Added xml for a new floater and registred it in the floaterreg

- Removed side tray dependencies

- Added static helper method: LLFloaterSidePanelContainer::showPanel

EXP-1221 FIXED Added a floater container class that provides an interface for all former Side Tray panels.

The container implements a unified behavior similar to Side Tray tabs for all floaters:
- LLSD params are passed to the main panel (root panel containing other child panels) upon opening the floater via LLFloaterReg,
- LLSD params can be passed to one of the child panels using LLFloaterSidePanelContainer::openChildPanel()
- transient floaters (e.g. IM windows) should not hide when the container floater is clicked, so that it's possible to drag an inventory item from My Inventory floater to a docked IM window.

Reason:
When an undocked side tray tab floater got closed with Ctrl+Shift+W,
LLSideTray::setTabDocked() was called. It docked the floater but didn't update
the dock/undock icon.

Fix:
Made setTabDocked() a general purpose method, not a hack suitable for using
only as a floater close callback in the basic viewer mode.
It now updates the dock/undock icon.

Other changes:
* Replaced numerous calls to toggleTabDocked with setDocked(),
  that is safer because does exactly what you want.
* Got rid of a duplicated floater close callback.

ShowSideTrayPanel action can now toggle undocked panels
OpenSidePanelsInFloaters works now
Clossing a sidepanel floater will not return contents to side tray
close button enabled in minimal skin for side panel floaters

All detached side tray tabs are now wrapped with LLFloaterSideTrayTab that adds them as exceptions to LLTransientFloaterMgr,
i.e. as views clicking on which doesn't hide transient floaters.

Renamed LinuxVolumeCatcher class to VolumeCatcher.  Everything in the header except the class name was already platform-agnostic, so I just renamed it to volume_catcher.h.

Moved the stub implementation from the end of linux_volume_catcher.cpp (previously only used if LL_PULSEAUDIO_ENABLED was not defined) to dummy_volume_catcher.cpp, and made CMakeList.txt file use the dummy impl on Linux if PULSEAUDIO is not defined.

Removed the ifdefs on the use of VolumeCatcher in MediaPluginWebkit, so it gets called on all platforms.

Added a setPan() function to VolumeCatcher (currently unimplemented, but we'd like to have this capability in the future).

Moved some functions with llinfos into .cpp files
Linker optimizations, all

ignore-dead-branch

Result of svn merge -r107256:107258 svn+ssh://svn/svn/user/phoenix/license_2009_merge into trunk. QAR-1165

Result of svn merge -r71162:71205 svn+ssh://svn/svn/linden/branches/new-license into release. only changes files which are not deployed or the comments section of code.