Bump version to 2.0.5
Fixed typo
Set groups and roles when fetching users.
re #189: Only seekable resources should be streamable
re #189: Do not call seek if the resource is not seeable
re #189: fstat only works on local resources
re #189: Transport::send was only called for streamable resources
re #186: Return arrays from getGroups and getRoles
re #186: Add UserAbstract::hasRole and UserAbstract::hasRoles
re #186: Add UserInterface::hasRole and hasRoles
re #189: Add missing isSeekable method
re #187 : Use while loop to clean output buffer.