xcode: add new package ID for Mavericks.
xcode: add new package ID for Mavericks.

Closes Homebrew/homebrew#30296.

gordonmcshane/homebrew,maxim-belkin/brew,nandub/brew,DomT4/brew,DomT4/brew,AnastasiaSulyagina/brew,aw1621107/brew,bfontaine/brew,MikeMcQuaid/brew,konqui/brew,hanxue/linuxbrew,staticfloat/brew,jmsundar/brew,konqui/brew,rwhogg/brew,nandub/brew,ilovezfs/brew,muellermartin/dist,hanxue/linuxbrew,zmwangx/brew,Homebrew/brew,palxex/brew,AnastasiaSulyagina/brew,reitermarkus/brew,rwhogg/brew,tonyg/homebrew,JCount/brew,mgrimes/brew,claui/brew,bfontaine/brew,mahori/brew,Linuxbrew/brew,tonyg/homebrew,hanxue/linuxbrew,mahori/brew,palxex/brew,sjackman/homebrew,gregory-nisbet/brew,Linuxbrew/brew,Homebrew/brew,konqui/brew,tonyg/homebrew,sjackman/homebrew,reelsense/brew,gordonmcshane/homebrew,staticfloat/brew,nandub/brew,JCount/brew,ilovezfs/brew,claui/brew,bfontaine/brew,mgrimes/brew,gregory-nisbet/brew,amar-laksh/brew_sudo,reitermarkus/brew,Linuxbrew/brew,konqui/brew,MikeMcQuaid/brew,amar-laksh/brew_sudo,reitermarkus/brew,toonetown/homebrew,zmwangx/brew,jmsundar/brew,maxim-belkin/brew,Homebrew/brew,alyssais/brew,palxex/brew,sjackman/homebrew,AnastasiaSulyagina/brew,vitorgalvao/brew,toonetown/homebrew,zmwangx/brew,EricFromCanada/brew,reelsense/brew,MikeMcQuaid/brew,muellermartin/dist,sjackman/homebrew,vitorgalvao/brew,nandub/brew,mistydemeo/homebrew,EricFromCanada/brew,pseudocody/brew,gordonmcshane/homebrew,pseudocody/brew,MikeMcQuaid/brew,reitermarkus/brew,aw1621107/brew,vitorgalvao/brew,mistydemeo/homebrew,claui/brew,ilovezfs/brew,alyssais/brew,aw1621107/brew,jmsundar/brew,Homebrew/brew,DomT4/brew,amar-laksh/brew_sudo,pseudocody/brew,Linuxbrew/brew,EricFromCanada/brew,staticfloat/brew,EricFromCanada/brew,muellermartin/dist,alyssais/brew,mistydemeo/homebrew,claui/brew,mahori/brew,mgrimes/brew,rwhogg/brew,gregory-nisbet/brew,JCount/brew,mahori/brew,JCount/brew,toonetown/homebrew,reelsense/brew,vitorgalvao/brew,DomT4/brew,maxim-belkin/brew