another attempt to move mem stat into base class

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

that were dropped in merge

submitted to be acceptable

Inventory pull down bar causing blinks to screen.  Pulled in FS code,
Reviewed by Kelly

re-introduced don's refactor of low-level openGL calls pulling out of llui
and putting them into llrender. Took the new code from their updated versions
from the CHUI merge, but put them in a place accessible to appearance utility.

fixed most fast timer display and interaction issues

fast timer bars render correctly

CHUI-667 Upon exit from DND mode, a maximum of one sound should be played. Solution. Added a deferred sound class which will have sound id's added to it and upon unmuting the deferred sounds will be played.

Per code review:
Previous refactoring of LLUI::locateSkin() preserved odd failure behavior: it
would return last-considered pathname, whether or not it exists. Changed to
emit LL_WARNS log message and return empty string.
Use Boost.Assign to simplify initialization of a couple static containers in
lldir.cpp.

In a number of different places, for different reasons, the viewer wants to
load a UI-related file that might be overridden by a non-default skin; and
within that skin, might further be overridden by a non-default language.
Apparently, for each of those use cases, every individual developer approached
it as an entirely new problem, solving it idiosyncratically for that one case.
Not only is this a maintenance problem, but it rubs one's nose in the fact
that most such solutions consider only a subset of the relevant skin
directories.
Richard and I evolved an API intended to address all such cases: a central
LLDir method returning a list of relevant pathnames, from most general to most
localized, filtered to present only existing files; plus a couple of
convenience methods to specifically obtain the most general and most localized
available file.
There were several load-skinned-file methods (LLFloater::buildFromFile(),
LLPanel::buildFromFile() and LLUICtrlFactory::createFromFile() -- apparently
cloned-and-modified from each other) that contained funky bolted-on logic to
output the loaded data to an optional passed LLXMLNodePtr param. The trouble
is that passing that param forced each of these methods to subvert its normal
search: specifically for that case, it needed to find the baseline XML file
instead of the localized one. Richard agreed that for the intended usage
(reformatting XML files) we should use XML schema instead, and that the hacky
functionality should be removed. Remove it. Also remove
LLUICtrlFactory::getLocalizedXMLNode(), only used for those three special cases.
Some callers explicitly passed the optional LLXMLNodePtr param as NULL. Remove
that.
Remove LLFloaterUIPreview::displayFloater(save) param, which relied on the
optional output LLXMLNodePtr param. Make onClickSaveFloater() and
onClickSaveAll() emit popupAndPrintWarning() about discontinued functionality.
Recast LLFloater::buildFromFile(), LLPanel::buildFromFile(),
LLUICtrlFactory::createFromFile(), LLNotifications::loadTemplates(),
LLUI::locateSkin(), LLFontRegistry::parseFontInfo(),
LLUIColorTable::loadFromSettings(), LLUICtrlFactory::loadWidgetTemplate(),
LLUICtrlFactory::getLayeredXMLNode(), LLUIImageList::initFromFile(),
LLAppViewer::launchUpdater() and LLMediaCtrl::navigateToLocalPage() to use
findSkinnedFilenames(). (Is LLAppViewer::launchUpdater() ever called any more?
Apparently so -- though the linux-updater.bin logic to process the relevant
command-line switch has been disabled. Shrug.) (Is
LLMediaCtrl::navigateToLocalPage() ever used?? If so, why?)
Remove LLUI::setupPaths(), getXUIPaths(), getSkinPath() and
getLocalizedSkinPath(). Remove the skins/paths.xml file read by setupPaths().
The only configuration it contained was the pair of partial paths "xui/en" and
"xui/[LANGUAGE]" -- hardly likely to change. getSkinPath() specifically
returned the first of these, while getLocalizedSkinPath() specifically
returned the second. This knowledge is now embedded in findSkinnedFilenames().
Also remove paths.xml from viewer_manifest.py.
Remove injected xui_paths from LLFontGL::initClass() and
LLFontRegistry::LLFontRegistry(). These are no longer needed since
LLFontRegistry can now directly consult LLDir for its path search. Stop
passing LLUI::getXUIPaths() to LLFontGL::initClass() in LLViewerWindow's
constructor and initFonts() method.
Add LLDir::append() and add() methods for the simple task of combining two
path components separated by getDirDelimiter() -- but only if they're both
non-empty. Amazing how often that logic is replicated. Replace some existing
concatenations with add() or append().
New LLDir::findSkinnedFilenames() method must know current language. Allow
injecting current language by adding an LLDir::setSkinFolder(language) param,
and pass it where LLAppViewer::init() and initConfiguration() currently call
setSkinFolder(). Also add LLDir::getSkinFolder() and getLanguage() methods.
Change LLFLoaterUIPreview's LLLocalizationResetForcer helper to "forcibly
reset language" using LLDir::setSkinFolder() instead of LLUI::setupPaths().
Update LLDir stubs in lldir_stub.cpp and llupdaterservice_test.cpp.
Add LLDir::getUserDefaultSkinDir() to obtain often-overlooked possible skin
directory -- like getUserSkinDir() but with "default" in place of the current
skin name as the last path component. (However, we hope findSkinnedFilenames()
obviates most explicit use of such individual skin directory pathnames.)
Add LLDir unit tests for new findSkinnedFilenames() and add() methods -- the
latter exercises append() as well.
Tweak indra/integration_tests/llui_libtest/llui_libtest.cpp for all the above.
Notably, comment out its export_test_floaters() function, since the essential
LLFloater::buildFromFile(optional LLXMLNodePtr) functionality has been
removed. This may mean that llui_libtest.cpp has little remaining value, not
sure.

Removed most llappearance -> llui dependencies (LLTrans remains).  Moved LLInventoryIcon::EIconName into LLInventoryType.  Moved LLInventoryIcon back to newview.  Moved LLUI gl_* functions into llrender.

added draw3D to LLUIImage to encapsulate display of image in projective 3D space

all param values now support named values uniformly

EXP-1883 FIX Toolbar button tooltips display off screen for right hand tool bar, bottom tool bar, and tooltips on top bar items show off screen

EXP-1181 WIP as a designer I would like to specify default floater positions using realtive coordinates
changed over to new convert() method
added LLCoordFloater

EXP-1181 WIP as a designer I would like to specify default floater positions using realtive coordinates
refactored LLCoord code to be templated, ultimately to support arbitrary conversions

and sh-2658: crash in LLPluginMessage::parse

SH-2591 WIP -- fix for UI disappearing, introduces some artifacts in rotation ring, committing to debug elsewhere

EXP-1280 FIX -- Minimized floaters associated with toolbar buttons should change the state of their parent button

* Toolbar buttons now display green when its corresponding floater is open or
  minimized.
* Made changes to buttons so flash time and rate is configurable
* Removed unused "highlight_color" attribute from LLButton
* Implemented "isVisible" function for toolbar button floaters.  It returns true
  when the floater is visible or minimized.
* Toolbar floater unminimize now also puts focus to the floater
* All commands now specify their "is_running_function" for toolbar button state
* ButtonFlashCount and ButtonFlashRate have been moved to button.xml settings
  and are now configurable on the button.  Toolbar buttons are set to never
  flash and this functionality is used to show which buttons have windows open.
* All toybox buttons show hover glow even when disabled

Reviewed by Richard.

added Flag as value type
moved Batch to BatchBlock
renamed Choice to ChoiceBlock
made merging of parameters for ValueParams consistent (fillFrom and overwriteFrom are inverses of each other now)
made iteration over Multiple<T> type params easier
initial schema param blocks

SH-2244 Fix for crash when transparent water disabled (silently ignore setting when basic shaders enabled)

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.

created toolbar class and widget

SH-2031 High risk changeset, but potentially high reward.  Addresses frame stalls in renderer by never using the fixed function pipeline if shaders are available.