MCCXXIII, a club whose name I type differently every time I write it, has closed, reports the Going-Out Gurus. Rents just got too high downtown. I wonder if that’s true everywhere. Now that President Obama has taken office and started filling jobs with the people who helped him get there Clinton people, Stetson’s on U Street has been restored to the glory it enjoyed during its heyday in the 90s. It might feel as though…