Upgrading to Iogi 2.0
Adds JSON versioning capability
Remove ExclusionStrategy definition
Adiciona documentação para funcionalidade de versionamento do JSON
Adding method to copy streams

Can help users to copy uploaded file to an OutputStream.
Testing file to stream copy
Renaming CommonsUploadFile
Using commons-io instead of Java code.

Because commons-io is already existing dependency of commons-fileupload.
And the code of copy method is optimized to copy large files, and its
very similar of our code.
Merge branch 'master' of https://github.com/caelum/vraptor4 into ot-uploadimprovements
Adding docs about new method UploadedFile.writeTo
create cookbook about @ConversationScoped
add ` around class and method' names
Bypass VRaptor filter in WebSocket requests.
1. Moving the Websocket request identification to an specific method.
2. Creation of a unit test for the Websocket request bypass mechanism.
Moving comments within the method to the method's javadoc.
Avoiding a second call to request.getHeader()
Refactoring the test to reflect the expected behaviour
Merge pull request #891 from marcioferlan/master

Bypass VRaptor filter in WebSocket requests.
Merge pull request #890 from angeliski/master

create cookbook about @ConversationScoped
[maven-release-plugin] prepare release vraptor-parent-4.1.2