- fix for review
- fix in buffer overrun detector

less than allowed. Changes in all other files relate auxiliary methods for
catching similar bugs in future.

also, fixed alignment of tick labels on stat bars

removed complicated and unnecessary fast timer gapless handoff logic (it should be gapless anyway)
improved MemTrackable API, better separation of shadow and footprint
added memory usage stats to floater_stats.xml

changed unit declarations macros to make a lot more sense

continued conversion to units system
made units perform type promotion correctly and preserve type in arithmetic
e.g. can now do LLVector3 in units
added typedefs for remaining common unit types, including implicits

converted many values over to units system in effort to track down
source of 0 ping

added percentage/ratio units
added auto-range and auto tick calculation to stat bar to automate display stats

Move fast memcpy to llcommon and use it in llalignedarray pushback on all platforms. Code Review: DaveP

Reviewed by Graham

made LLTrace::MemTrackable support custom alignment
LLDrawable now uses MemTrackable new and delete operators

fix for compile error on windows
ignore stdint.h even though VS2010 provides it

fixes to merge

MAINT-1753: Correcting behavior of ll_aligned_realloc_16() on Linux to avoid memory corruption in the case that the new memory size requested is smaller than the old memory size.  Also, adding check to ensure that the aligned malloc returns a non-null value before memcopying.

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

Skipping the realloc alignment test on Linux as the ll_aligned_malloc_16() function is not implemented to ensure alignment on Linux.