added geometric and harmonic mean, and a bit of fuzz to ensure minimum interval is never 0 (on a scale of nanoseconds, an interval of 0 is not really possible and causes numerical problems)
working on window counts feature
window count adding function compiling; need to do initialization of window counts, and default values
Merge branch 'window_counts' of github.com:doublereedkurt/faststat into window_counts

Conflicts:
	faststat/_faststat.c