Read default serializer options from the controller
Merge branch 'master' into read-options
better formatting.
add spec for `default_serializer_options`.
update README.
Merge pull request #30 from OutrageousLabs/read-options

read options from default_serializer_options.
Bump version number
Adds new maintainers message to readme
Merge branch 'master' into test-fixes

Conflicts:
	spec/grape-active_model_serializers/formatter_spec.rb