Clarified the reason for adding the deleteSingleton method to LLSingleton. Added a simple unit test to verify the functionality of the deleteSingleton method.

That, in turn, needs Boost.System library.

This is in its infancy; tested on Mac; needs to be ironed out on Windows and
Linux. Goal is to test at least some cross-language LLSD serialization.

This library was only needed on the Mac, and only with the OS X 10.4 SDK. As
of October 2010, we no longer build the viewer with that SDK. The 10.5 SDK
we're currently using directly supports the functionality for which we
originally brought in Pth.

Modified Mac OS_VERSION string to include OS X version number in addition to Kernel version info.
DARWIN llcommon build now depends on Carbon in order to provide this functionality.

Reviewed by Richard.

Until now, LLEventAPI has only been able to register functions specifically
accepting(const LLSD&). Typically you add a wrapper method to your LLEventAPI
subclass, register that, have it extract desired params from the incoming LLSD
and then call the actual function of interest.
With help from Alain, added new LLEventAPI::add() methods capable of
registering functions/methods with arbitrary parameter signatures. The code
uses boost::fusion magic to implicitly match incoming LLSD arguments to the
function's formal parameter list, bypassing the need for an explicit helper
method.
New add() methods caused an ambiguity with a previous convenience overload.
Removed that overload and fixed the one existing usage.
Replaced LLEventDispatcher::get() with try_call() -- it's no longer easy to
return a Callable for caller to call directly. But the one known use of that
feature simply used it to avoid fatal LL_ERRS on unknown function-name string,
hence the try_call() approach actually addresses that case more directly.
Added indra/common/lleventdispatcher_test.cpp to exercise new functionality.

VWR-22761 : Rearchitecture of llmetricperformancetester and simple (non complete) implementation in llimagej2c

SNOW-748 FOLLOWUP make CMake if indentation consistent with other occurrences (i.e. two spaces only)

SNOW-748 FIXED Building on OSX 10.6 fails with "warning: -mdynamic-no-pic overrides - fpic or -fPIC"

Originally commited at http://svn.secondlife.com/trac/linden/changeset/3499/projects/2010/snowglobe and http://svn.secondlife.com/trac/linden/changeset/3501

SVN changeset 3499 partially applied with --ignore-whitespace:

	Hunk #1 FAILED at 259.
	Hunk #2 FAILED at 265.
	2 out of 2 hunks FAILED -- saving rejects to file
	indra/llcommon/CMakeLists.txt.rej
	patching file indra/media_plugins/webkit/CMakeLists.txt
	Hunk #1 succeeded at 33 with fuzz 1 (offset -8 lines).
	patching file indra/media_plugins/base/CMakeLists.txt
	patching file indra/media_plugins/gstreamer010/CMakeLists.txt
	patching file indra/media_plugins/example/CMakeLists.txt
	patching file indra/llplugin/CMakeLists.txt

Manually applied to indra/llcommon/CMakeLists.txt (straight forward).

SVN changeset 3501 applied with fuzz 1:

	patching file indra/media_plugins/webkit/CMakeLists.txt
	Hunk #1 succeeded at 33 with fuzz 1 (offset -8 lines).
	Hunk #2 succeeded at 39 with fuzz 1 (offset -8 lines).

No further changes other than that.

Formatting, cleanup, and one minor change by Techwolf Lupindo.
Minor change was a move of the hunk in
indra/media_plugins/webkit/CmakeLists.txt to same area as the other plugins CmakeLists.txt files.

daggyfied version of https://bitbucket.org/Techwolf/viewer-development/changeset/00bd21962052

Implemented EXT-6724(normal task) - Implement flat list view of filtered inventory for "add wearables" panel of outfit editor
1. Modified LLInventoryItemsList - implemented delayed item construction. Items are added during draw, not more than 50 items will be added in single draw. This lets us reduce system overload during multiple panel construction.
2. Implemented LLFilteredWearableListManager to populate inventory flat list with data. This class filters entire inventory according to specified filter and populates specified inventory list with data.
3. Created LLCommonUtil::computeDifference() to avoid code copy-pasting(will use it in all appropriate places in next review request)

Reviewed by Mike Antipov - https://codereview.productengine.com/secondlife/r/301/

--HG--
branch : product-engine

well as LLAvatarName base data object.
Reviewed with Kelly.

move LLEventTimer into its own source module.  everyone includes it, almost no-one wants it.  now I can dick with it a bit without rebuilding the world, at least. :)

legacy coding policy fix-up.

Replace LLEventPump's boost::scoped_ptr<LLStandardSignal> with
boost::shared_ptr. Take a local stack copy of that shared_ptr in post()
methods, and invoke the signal through that copy. This guards against scenario
in which LLEventPump gets destroyed during signal invocation. (See Jira for
details.) Re-enable Mani's test case that used to crash.
Introduce ll_template_cast<> to allow a template function to recognize a
parameter of a particular type.
Introduce LLListenerWrapper mechanism to support wrapper objects for
LLEventPump listeners. You instantiate an LLListenerWrapper subclass object
inline in the listen() call (typically with llwrap<>), passing it the real
listener, trusting it to forward the eventual call.
Introduce prototypical LLCoutListener and LLLogListener subclasses for
illustrative and diagnostic purposes. Test that LLLogListener doesn't block
recognizing LLEventTrackable base class bound into wrapped listener.

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

Reviewed by Bao

with an event API. In addition to the LLEventPump name on which to listen,
LLEventAPI accepts a documentation string for event API introspection.
Give every LLEventDispatcher::add() overload a new documentation string
parameter for event API introspection.
Convert every existing event API to new conventions, introducing suitable
documentation strings for the API and each of its operations.

For both the (so far unused) generic KEY form and the KEY = T* form, provide
key_iter, beginKeys(), endKeys().
Change instance_iter so that when dereferenced, it gives you a T& rather than
a T*, to be more harmonious with a typical STL container. (You parameterize
LLInstanceTracker with T, not with T*.)
Fix existing usage in llfasttimer.cpp and lltimer.cpp to agree.
For the KEY = T* specialization, add T* getInstance(T*) so client isn't forced
to know which variant was used.
Add unit tests for uniformity of public operations on both variants.

Fixed mac breakage.

Should now work out of the box on all 3 platforms and in the debugger.