With the aid of Ronnie Cohen SAN FRANCISCO (Reuters) – California’s Democratic governor intervened on Sunday to ward off a San Francisco area rail strike that threatened to cripple the morning rush-hour commute, successfully prohibiting a walkout for seven days after the perimeters failed to succeed in a contract agreement. Federal and state mediators had labored with out success with negotiators for the area’s teach gadget, BART, and the 2 unions representing its staff late into Sunday night to take a look at to succeed in a deal to forestall a strike in advance of a nighttime closing date. …