Add September, October, and November Haverhill Meetup dates
Add September, October, and November Haverhill Meetup dates

ridingwolf/openhack.github.com,OpenHack/openhack.github.com,ridingwolf/openhack.github.com,OpenHack/openhack.github.com,OpenHack/openhack.github.com,ridingwolf/openhack.github.com