tools : manage-domains messages should be more clear

When user adds a domain with no "-addPermissions" the message should
show the option of -action=edit with -addPermissions option.

When the user edits a domain to change the password of a user who
has been granted permissions with -addPermissions, the message to
grant permissions should not be displayed.

Change-Id: I04bd16bebfcd9e5390444c525fc45363acff835c
Bug-Url: https://bugzilla.redhat.com/show_bug.cgi?id=908246
Signed-off-by: Ravi Nori <rnori@redhat.com>