Support external commands
Support external commands

Homebrew will now look for external commands that are +x on PATH, named
as "brew-<cmd>" or "brew-<cmd>.rb"

* Shell scripts are exec'd with some HOMEBREW variables set in the ENV.
* Ruby scripts are require'd directly.

See: http://wiki.github.com/mxcl/homebrew/external-commands

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