(maint) Checks in a pair of useful dev tools

These are two scripts (not mine) which have been floating around, which
have proved useful for setting up a local puppet-master daemon for
testing, and for bisecting spec order failures.

I don't know that util is the best subdirectory for them to live in.
(maint) Clarify comments and link to puppet-master issue
(doc) Notes on curl with dev-puppet-master script

And a change to dev-puppet-master to automatically copy auth.conf if not
already present.
Merge pull request #1788 from jpartlow/feature/master/utility-scripts

(maint) Checks in a pair of useful dev tools