The instructions for installation provided a lot of different
alternatives. In order to quickly answer the question of "how do I use
this" we can just give the most common ways of getting it installed.
Since we don't want the name of the tool to reflect the fact that
it is using yard internally (this is an implementation detail), rename
the face to `strings`. Now when one wishes to generate documentation,
`puppet strings` will be used rather than `puppet yardoc`.
Andrew Parker