This commit fixes the behaviour of scopes where whitespace was allowed
(and thus persisted) in the Name and Description fields.
It also adds some more tests for scope Create and Updateto cover more
error cases.
For scope update, `handlers.ValidateUpdateRequest` exists, however this
was not used as it does not work properly for requests where the
`global` scope is updated.
In `ValidateUpdateRequest`, an ID check is performed and it assumes
there's always a resource prefix (eg: "p", "o") and an identifier
(random numbers and letters) after the prefix. This fails for `global`.
See `handlers.ValidId`.
Hugo
dba7d88523