...and change over to use RegisterStash 0.003's _retrieve_or_register()

Seriously, I've written that method in probably a half-dozen packages now.
POD updates
document stash_from_config()'s around wrapper
initial public interface structural testing
nit! minor pod nits
add/alter repo_raw and repo_wrapper attributes

...to lazily construct and hold Git::Raw::Repository and Git::Wrapper
instances, respectively.
add big ATCHUNG! pod section
add ATCHUNG to :stopwords; appease POD spelling tests
v0.000004

	* first non-TRIAL release!  ...though to call us TRIAL is to be, well, overly
	  kind.
	* _git_store's builder method in our consumer role now uses the
	  RegisterStash role's _retrieve_or_register() method