A federal judge in Seattle denied a motion to broadly expand a gender-discrimination lawsuit against Microsoft, dealing a blow to a group of women suing the company who had hoped to add thousands of plaintiffs to the case.  The plaintiffs in the case, Moussouris v Microsoft, had been seeking permission from the judge to create a class-action suit.  That would have made it possible for more than 8,600 women to join the case and potentially get damages from the company.  U.S. District Judge James Robart denied the class-action motion Monday...In a statement..., Microsoft said the judge made the “right decision.”  “We remain committed to increasing diversity and making sure that Microsoft is a workplace where everyone has an equal opportunity to succeed,” a company spokesperson said...Robart’s decision does not dismiss the lawsuit against Microsoft, which can still proceed with the named plaintiffs.