Microsoft CEO Satya Nadella asks Silicon Valley to give it a chance before it gets mad over the company's $7.5 billion purchase of GitHub (MSFT)

AP Microsoft is buying GitHub for $7.5 billion. The news is causing some angst for programmers — GitHub is the center of the world of open source software development, and Microsoft has a history of treating open source like the enemy. Microsoft CEO Satya Nadella tried to reassure developers that it's a new day, a new Microsoft, and the company has no intention of closing GitHub off. On Monday, Microsoft announced the $7.5 billion acquisition of GitHub — a site that 24 million programmers al...