DC 101.1 may have thought that WHFS’s suprising demise earlier this year left them as the sole modern rock purveyor in the Washington area, but as DCist reported in late March, the infamous HFStival is still alive, still well, and ironically enough, better than it was when it was run by the late radio station. Not to be left behind, DC 101 recently announced the bands that would play this year’s installment of the long-running…