over to get_thread_recorder() to be agnostic about which thread we're running on

added more MemTrackable types
optimized memory usage of LLTrace some more

renamed "current" to "primary" when referring to accumulators

made getPrimaryAccumulator return a reference since it was an
always non-null pointer
changed unit conversion to perform lazy division in order to avoid truncation
of timer values

SH-4346 FIX: Interesting: some integer Statistics are displayed as floating point after crossing region boundary
made llerrs/infos/etc properly variadic wrt tags
LL_INFOS("A", "B", "C") works, for example
fixed unit tests
remove llsimplestat

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

also, removed LLTrace::init and cleanup
removed derived class implementation of memory stat for LLMemTrackable
is automatic now

removed LLThreadLocalSingleton
collapsed all thread recorder classes to single type, LLTrace::ThreadRecorder
moved fasttimer stack head to llthreadlocalsingletonpointer via ThreadRecorder

pulled swap() out of ui time block
cleaned up internal lltrace dependencies, factored out common accumulator definitions

moved collapsed flag to fast timer tree node

fixed copy construction behavior of Recordings to not zero out data
split measurement into event and sample, with sample representing
a continuous function

cleaned up hacks used to get unit tests working
LLTrace::init now supports recursive initialization/cleanup
put NOMINMAX back in win32 header wrappers

made fast timer stack thread local
added LLThreadLocalSingleton
made LLThreadLocalPointer obey pointer rules for const
added LLThreadLocalSingletonPointer for fast thread local pointers

improvements on lifetime of lltrace core data structures
tweaks to thread local pointer handling so that static constructors/destructors
can safely call functions that use lltrace

got new fast timer code to compile and run

eliminated min and max macros from windows.h
got rest of viewer to compile against llfasttimer changes

cleaning up build
moved most includes of windows.h to llwin32headers.h to disable min/max macros, etc
streamlined Time class and consolidated functionality in BlockTimer class
llfasttimer is no longer included via llstring.h, so had to add it manually in several places

moving fast timers into lltrace namespace and accumulation system

simplified llfasttimer code down to 2 classes
llunit unit conversion now done in floating point or 64 bit integer precision,
depending on source type

fixed units conversion so that trace getters return convertable units
removed circular dependencies from lltrace*
converted more stats to lltrace

moved threadrecorder classes into separate file
added Count trace type, which tracks value increases and decreases and can report churn
as well as overall growth rate

implemented minimal merging logic
made recordings ligher weight by moving live tracking data into threadrecorder

renamed LLTrace::ThreadTrace to LLTrace::ThreadRecorder
renamed LLTrace::Sampler to LLTrace::Recording

cleaned up API
samplers are now value types with copy-on-write buffers under the hood
removed coupling with LLThread

factored out lltrace::sampler into separate file
added rudimentary lltrace support to llstatgraph
made llstatgraph use param blocks more effectively
moves initial set of stats over to lltrace
removed windows.h #defines for min and max

created separate constructor for static allocation of sampler buffer
fixed start/stop/resume semantics of samplers and added sampler time interval tracking

slave threads now pushing data to master thread

fixed various issues related to unit tests and LLThreadLocalPtr initialization and teardown

moved LLThreadLocalPtr to llapr
fixed various startup race conditions for LLThreadLocalPtr

added LLThreadLocalPtr
broke llmutex out into llmutex.h
got primary sampling buffer under thread local storage