Merge pull request #1 from garu/master

tests and a couple of updates
Update Facebook.pm
prevent crash during callback route failure

Hi there! Me again :)

This patch fixes an issue where the app crashes if the callback route doesn't have the proper parameters.
Merge pull request #2 from garu/patch-1

prevent crash during callback route failure
updating meta information and README
updating manifest
Merge pull request #3 from garu/garu/metadata

updating meta information and README
improved error handling
updating Changes file