Added the option ALLOW_CHANGING_QUOTA_IF_NO_FILESTORE_SET to 'AdminUser.properties' to allow changing the quota for a user that has not yet an individual file storage set.

If set to true and the user has not yet an individual file storage set, an appropriate file storage gets assigned to the user. This implicitly includes to move the user's files from context file storage to that newly assigned file storage, which might be a long operation.

Default is false.