#77 Make Codenvy client API a pure OSGi bundle
Close #77 Move integration tests to new client API bundle, resolves #2
Add tests for credentials provider in Codenvy client API
Add tests for abstract client in Codenvy client API
Close #79 Codenvy provider icon is not displayed on project folder
Modify client project layout
Fix when token must be refreshed in client API
Fix compilation warning
Relax response acceptance criteria to 2xx codes

Base acceptance criteria on status code family rather than on 200 code.
#68 Remove unnecessary suppress warnings annotation
#68 Remove unnecessary configuration in client API pom
#68 Add a default credentials store factory
#68 Remove the StoredCredentials class
#68 Create an auth package
#68 Rename the APIException class
#68 Remove the exceptions package
#68 Create an AuthenticationFilter class
#68 Rename CredentialsProvider class
#68 Add a credentials provider
#68 Rename the request classes