Firefighters battling a 2,700-acre wildfire on the western edge of Yosemite National Park pushed the blaze farther from homes, but only as flames raced deeper into the heart of the park, officials said Tuesday. [...] residents of the threatened communities of Old El Portal and Foresta, near the park's Highway 140 entrance, praised firefighters for keeping the blaze from demolishing their communities. Olotumi Laizer had just returned home after a long drive Saturday to Manteca, where he had picked up lunch at Chipotle for his wife. High temperatures on top of dense brush and oak trees dried by three years of drought have fanned the fast-moving fire.