support for EDN::tagout operating on a variable number of values
fix typo in usage example
EDN.register defaults to the identity function when no handler is given
Merge pull request #9 from michaelficarra/tagout-varargs

"support for EDN::tagout operating on a variable number of values" - Thanks! I'm going to merge the spec as it is. Although edn-ruby has all static methods and doesn't need to add static method section right now, it looks neat.
Adds tagout examples to README.md
Fixes an inappropriate one of tagout example
Merge pull request #10 from kraynar/fix-typo-in-readme

"fix typo in usage example" -- Thanks!
Adds rake to development dependency section in gemspec
Merge pull request #11 from michaelficarra/register-auto-identity

EDN.register should default to the identity function when no handler is given
Fixed error in README

Fixes issue relevance#13