Updated doc
Fixed impersonated bug
Made is_browsable field optional
Submodule update
Merge branch 'refactoring-for-unit-tests' of https://github.com/claroline/Claroline into refactoring-for-unit-tests
Refactored AdministrationWidgetController with ParamConverter
Rerouted cancel button in desktop widget config
Redirected cancel button in user creation form
Fixed non-working delete button in Group list
Merge branch 'refactoring-for-unit-tests' of https://github.com/claroline/Claroline into refactoring-for-unit-tests
Reorganized test suite
Merge pull request #101 from claroline/refatoring-for-unit-test-nico

Some bug fixes.
Merge branch 'refactoring-for-unit-tests' of https://github.com/claroline/Claroline into refactoring-for-unit-tests
Fixed non-working cancel button when adding users to a group
Merge branch 'refactoring-for-unit-tests' of https://github.com/claroline/Claroline into refactoring-for-unit-tests
Fixed bug in workspace display logs tool
Reorganized fixtures
Merge branch 'refactoring-for-unit-tests' of https://github.com/claroline/Claroline into refactoring-for-unit-tests
Merge pull request #102 from claroline/refatoring-for-unit-test-nico

Using Persistence/ObjectManager in Manager/*
Fixed bug when adding groups to a workspace