Neighbors’ concerns about the Midfest Summer Celebration and the recent Cinco de Mayo street party appear to be encouraging the city and organizers to take extra precautions to ensure fewer headaches for residents. Meanwhile, Midfest organizers are still trying to get a permit to host the new event in Marshall Park next weekend. Midfest is launching a series of Saturday concerts in the park at 915 27th St. (I and 27th streets), across from a block of bars and restaurants. A special events permit has not yet been issued to Midfest's organizers, Midtown Business Association (MBA) and T & M Organization for the Arts, said Hindolo Brima, spokesperson for the city Department of Parks and Rec