Want an updated Makefile for BSD/Homebrew/non-root?

Hi folks,

I've just discovered git-extras through my work with Oh My Zsh and Homebrew and I'm digging it; I'd like to start using it regularly. I'm mainly an OS X/Homebrew user with a multi-user, multi-machine setup, and I'm running in to a few issues on this platform. I've got space for a weekend project. Would you be interested in a PR(s) that updated the Makefile and build process to do some or all of:

• Make sure the whole build, including doco generation, works under BSD/OS X
• Support relocating etc (#237)
• Support disabling selected commands and suppressing prompting for alias conflicts (#442, #228)
  • (would make fully unattended, repeatable installs possible)
  • Remove man & doco for disabled commands, just to be tidy
• Split the build and install into two steps, so you could build the commands (slurping in the library files) and run them inside the local source tree without having to install to the final destination (useful for iterating development)
• Install the HTML and other format docs under /usr/share/doc (right now it looks like they're going under man, which should really only be for man-formatted stuff)
• Unify makefile.msys with the main Makefile (#427)

Regardless, cheers for the good work.

Read the Makefile and makefile.msys first, then review the referenced issues #237, #442, #228, and #427 to narrow the requested scope. Done would require an agreed subset of the BSD/OS X, non-root build and installation goals to work, with documentation and disabled-command behavior verified where applicable.