Merge pull request #24 from clintongormley/master

Final changes to conform to A+
typo fixes
typo fixes
typo fixes
repository cpan metadata added
Merge pull request #25 from dsteinbrunner/patch-1

typo fixes
Merge pull request #26 from dsteinbrunner/patch-2

repository cpan metadata added
Updated the docs to reflect new behaviour
Added Promises::Cookbook::GentleIntro