Support/Comments for ShowMembers

Nice
Glad you took up the challenge. I got some other inbetween stuff so I would not have had time for it another couple of weeks probably.

Just uploaded version 1.1b to the repository:
- added value `all` to parameter &webGroups to show members of all webgroups (added in v1.1a).
- changed inclusion of language file to allow multiple snippet calls on same page.