[cmake-developers] New developer setup scripts

[Brad King]

Hi Folks,

FYI, I've added a new "Utilities/SetupForDevelopment.sh" script and some
associated helper scripts to CMake.  This consolidates all the local
work tree setup steps that previously had to be done by hand:

  - Prompts for Git author name/email
  - Installs local commit hooks
  - Adds topic stage remote

I've updated the developer instructions accordingly:

  http://www.cmake.org/Wiki/CMake/Git/Develop

If you already have a working set up there is no need to do anything.
It shouldn't hurt to run the new script in an existing set up though.

-Brad