DD-170 : Handle 503 answer from SLM and added a MARKET_MERCHANT_NOT_MIGRATED state to the UI, showing only the relevant UI to the user (i.e. Merchant Outbox or Marketplace Listings).

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

Reviewed by Merov.

EXP-1300 : drop tool animation. First shot. Works but still a bit hacky and with some bugs (tools can be duplicated at times).

EXP-1286 : Clean-up the mess I added to llcommandmanager. All CommandId now have a trusted UUID which is the base for indexing and comparison.

  currently not hooked to any functionality.

EXP-1205 PROGRESS -- As a User, I want a toybox which will contain all buttons that I can d&d into the toolbars
EXP-1233 FIX -- Populate the toybox floater window with all FUI toolbar buttons indicated as such in the "commands.xml" definition.
EXP-1267 FIX -- Enable/disable buttons in the toybox

* Hooked up button callbacks to the toolbar buttons
* Fixed toybox button enable/disable to function properly and live update as
  buttons change states.
* Removed the toybox toolbar background image

Reviewed by Leyla

EXP-1205 PROGRESS -- As a User, I want a toybox which will contain all buttons that I can d&d into the toolbars

* Command buttons are now enabled/disabled in toybox based on whether or not the
  LLToolBarView has them anywhere.
* Commands now have argument to specify whether or not they should be in the
  toybox.
* LLCommandId is now used a universal reference for commands.

Reviewed by Richard.

toolbars resize to fit buttons
toolbar view uses layout stacks to organize toolbars
reviewed by Leslie

EXP-1205 PROGRESS -- As a User, I want a toybox which will contain all buttons that I can d&d into the toolbars
EXP-1233 PROGRESS -- Populate the toybox floater window with all FUI toolbar buttons
EXP-1236 FIX -- The toybox floater should remember its position for the user

* Basic addCommand function to the LLToolBar.  Need proper implementation.
* Added map for faster lookup of commands
* Toybox now adds commands to its toolbar for basic button setup

Reviewed by Richard.

EXP-1205 PROGRESS -- As a User, I want a toybox which will contain all buttons that I can d&d into the toolbars
EXP-1232 FIX -- Create class to load and hold all of the command meta data associated with FUI toolbar actions

* Added basic commands.xml file to define FUI-related toolbar actions.  For now
  a basic "avatar" and "places" button are defined.
* Added basic command manager to parse and hold strings that define potential
  toolbar command actions.
* Broke out a separate floater function as a placeholder for the 3-state toolbar
  floater toggling.
* LLUI::initClass now parses the new commands.xml file

Reviewed by Richard.