Neil Patrick Harris, star of "How I Met Your Mother" and "Doogie, Howser, M.D." has become the proud father of twins with his partner David Burtka. Harris welcomed a baby boy and a baby girl on October 12, 2010. Neil Patrick Harris used Twitter to send a message to his followers about how babies Gideon Scott and Harper Grace are doing at home. The message Harris sent on Friday, October 15, 2010: "All of us are happy, healthy tired, and a little pukey." No stranger to Twitter, a previous post from the star of television and Broadway sent a Tweet...