The August STIRR mixer was held last night at Blue Chalk in Palo Alto and it was a HOT event – literally. No A/C on a hot August night…but still, the place was packed until the very end. Photo Credit: Ian Kennedy This was STIRR’s fifth event and appeared to be its biggest to date. What sets STIRR apart is that it is an effective mix of “live” social and business networking among a highly qualified crowd of tech innovators,…