for consistency with everything else, so we can use SUBSYSTEM_CLEANUP() macro
to call it.

updates appearance utility dependency

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

Fixing issues with not detecting when LLSD XML parsing fails.  Changing most http error handlers to understand LLSD error responses.  Fleshing out most http error handler message spam.

converted fast timer view over to new lltrace mechanisms

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

final removal of remaining LLStat code

STORM-987 : Took Vadim's comment into account: check arguments consistency, make sure remaining perf data are flushed on exit.

STORM-987 : Add --logmetrics and --analyzeperformance arguments, moved analyzeMetricPerformanceLog() and doAnalysisMetrics() from LLFastTimerView to LLMetricPerformanceTesterBasic

STORM-105 : takes Vadim's comments into account, clean up use of static globals and magic strings, enforce naming conventions

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