ABDeleteGroupMembersTag - add group members to a group
This class writes the group members to the Group bean found in its parent
entry tag or retrieved from pagecontext using name attribute.
Attributes:
members
',' separated list of element ids to add to the Group
groupid
element from which to delete the members
Execute the delete group members command on the address book.
Returns the command status.
If the command fails then the tag body is included,
Else if the command succeeds then the tag body is skipped.
true if the command succeeds.false if the command fails. exception: JspException -