PIT BULL MAULS GRANNY By MICHAEL WHITE and ANDY GELLER February 14, 2005 -- A 67-year-old Queens grandmother who had just left church was mauled by a pit bull yesterday as her terrified grandchildren watched in horror. The dog bit a screaming Jeannette Metellus on the arms, legs and bottom before a neighbor hit him with a shovel and kept the snarling animal at bay until the cops came. Metellus received stitches at Long Island Jewish Hospital. The attack occurred about 10:45 a.m. outside 218-03 104th Ave. in Queens Village, where Metellus and family gather after Mass at nearby First...