SH-2908 Rework indexed texture rendering to use a uvec4 instead of a float for texture indices in the data stream.  Also rework gl_FragColor overrides to not collide with some odd driver implementations.

removed merchant outbox context menu
reviewed by Leslie

reviewed by Leslie

Use the new "Avatar Rez" debugging tag to see the output.

Reviewed by Bao.

SH-2592 FIX -- (OS X Lion) Graphics issues with Atmospheric Shaders enabled on Intel HD 3000, 10.7.2

This is a dummy check-in to get the previous commit associated with SH-2592 instead of EXP-2592, which was a typo.

EXP-2592 FIX -- (OS X Lion) Graphics issues with Atmospheric Shaders enabled on Intel HD 3000, 10.7.2

* Fixed up shaders to add haze_density and blue_density together correctly as vec4's rather than
  relying on the shader compiler to add them together properly.

SH-2592 PROGRESS -- (OS X Lion) Graphics issues with Atmospheric Shaders enabled on Intel HD 3000, 10.7.2

Refactored WindLight estate settings to use float uniforms in the shaders that
only need it, rather than vec4's for everything.

* Cleaned up vertex buffer allocation to guarantee allocation and deallocation using the same allocation methods from the same pools.
* Added new shader feature for atmospheric helpers in the absence of lighting.

Reviewed by davep.

Reviewed by davep.

SH-2565 Move resetVertexBuffer operation to a consistent location (also avoid redundant resetting of vertex buffers on detail switches).  Change assertion to a warning with count info.  Fix bytes pooled debug display.  Remove unused static vertex buffer.

SH-2791 Use request class constructor/destructor for keeping track of concurrent requests instead of unreliable increments/decrements sprinkled around the code.

SH-2791 Use request class constructor/destructor for keeping track of concurrent requests instead of unreliable increments/decrements sprinkled around the code.

SH-1427 Fix for spot lights not working properly on alpha objects, and fix for alpha lighting of point lights not matching deferred lights.

Reverting background fetch on an item to the old fetFromServer call to fix regression bug in inventory late loading

Reverting rev 22217 changes to background fetch so search and recent will fully fetch user inventory

Reviewed by davep.

EXP-1799 FIX -- Replace and Add to Outfit options and Copy to Merchant Outbox options can appear in invalid state when a valid folder is last selection
EXP-1834 FIX -- Right click context menus on Folders in Merchant Outbox and Library folders can show all inventory options including admin options
EXP-1835 FIX -- Right clicking on a folder and selecting New Folder creates folder under My Inventory not within selected folder

* Updated folder context menu building to build full options in one step or
  trigger a load which will rebuild top-level context menu for all selected
  items when complete.  Previous code had an implicit assumption that the
  selected folder was the only selection after background fetch.

* Refactored LLFolderBridge::buildContextMenu fetch to clear and rebuild basic
  context menu options after the fetch rather than trying to merge the two.

* Modified build context menu code to not disable items that are invisible so
  secondary background fetch can coalesce menu options with proper state.
* Removed "Move to Merchant Outbox" context menu option.

EXP-1824 FIX Received Items panel does not collapse correct when Height of panel is maximized in Inventory window

EXP-1829 FIX -- Selecting a valid item last allows other selected invalid items to be copied to Outbox with context menu option

* Updated context menu default enabled state to use the last state rather than
  TRUE.  Once per frame, the states are all reset to TRUE so this has the effect
  of AND'ing together successive buildContextMenu functions rather than ignoring
  previous states.