In the column of news that we could have told you months ago, the Capitals have agreed to a long-term contract with coach Bruce Boudreau, who led the team to win 37 of 61 games after taking over midseason. This is the kind of first-season coaching record that will have Caps fans forgetting the triumphant debut of Bruce Cassidy. In the department of news we’ve been telling you for weeks, Nicklas Backstrom has been officially…