calc array size, read, write totals
log total entries searched for read-my-writes
make stat logs a #define (overhead of a branch would be way too high)
Merge branch 'master' into firstw

Conflicts:
	Transaction.hh
cache global (doesn't seem to have a perf difference)
make blindRandomWrite option a command line option
Merge branch 'master' into firstw
check readMyWrites on blindRandomWrite too
Merge branch 'master' into firstw
refactor code plus fix bug in readThenWrite
Merge branch 'master' into firstw
cleanup, make readThenWrite use write_prob
s/writeprob/writepercent/
DATA_COLLECT flag to turn off unnecessary printing
Merge branch 'master' into firstw