nit! " -> '
nit! drop some commented cruft
don't run tests unless gpg is present

...because, really, it's pointless and just generates a lot of fails.
travis config changes

add 5.8 and allow it to fail; don't test release/cpan branch by default.
v0.002

	* don't run our tests if the gpg executable is not present (pointless)
	* travis config changes to run 5.8 (but allow it to fail) and not test
	  the release/cpan branch
Full build of CPAN release 0.002