Twitter is on a bit of a shopping spree of late. After acquiring Periscope and quickly releasing it wide acclaim, Twitter has acquired tenXer. The startup is/was focussed on improving the workflow for programming teams, and will continue to work from their San Francisco office space. The sign-up page for tenXer is still up, but the company’s GitHub page is gone. According to an email from tenXer founder Jeff Ma, the startup itself will be shuttered, and all work will now happen under the branding of Twitter.