Editing WoW:API GetGuildRosterContribution (section)

== Example ==
 Fig 1.1                                Fig 1.2
 +--------+-------+--------+-----------+    +--------+-------+--------+-----------+
 | Status | Name  | Weekly |   Total   |    | Status | Name  | Weekly |   Total   |
 |--------+-------+--------+-----------|    |--------+-------+--------+-----------|
 | Off    | Alpha | #4  10 | #1  42000 |    | On     | Gamma | #2  30 | #3  20000 |
 | Off    | Beta  | #3  20 | #2  30000 |    | Off    | Alpha | #4  10 | #1  42000 |
 | On     | Gamma | #2  30 | #3  20000 |    | Off    | Beta  | #3  20 | #2  30000 |
 | Off    | Delta | #1  42 | #4  13373 |    | Off    | Delta | #1  42 | #4  13373 |
 +--------+-------+--------+-----------+    +--------+-------+--------+-----------+
 | [x]Show Offline Members         1/4 |    | [ ]Show Offline Members         1/4 |
 +-------------------------------------+    +-------------------------------------+
 
   Note: In fig 1.2, 'show offline members' is disabled so only Gamma
         will be visible in the Guild UI, but for ease of explanation,
         the others are listed.

Using the above sample guild rosters, this code
 local totalMembers, onlineMembers = GetNumGuildMembers();
 local visibleMembers = onlineMembers; 
 if ( GetGuildRosterShowOffline() ) then
  visibleMembers = totalMembers;
 end
 for index=1, visibleMembers do
  local weeklyXP, totalXP, weeklyRank, totalRank = GetGuildRosterContribution(index);
  DEFAULT_CHAT_FRAME:AddMessage('g'..index..' weeklyXP: '..weeklyXP..' (#'..weeklyRank..'), totalXP: '..totalXP..' (#'..totalRank..')');
 end
would output for fig 1.1
 g1 weeklyXP: 10 (#4), totalXP: 42000 (#1)
 g2 weeklyXP: 20 (#3), totalXP: 30000 (#2)
 g3 weeklyXP: 30 (#2), totalXP: 20000 (#3)
 g4 weeklyXP: 42 (#1), totalXP: 13373 (#4)
and for fig 1.2
 g1 weeklyXP: 30 (#2), totalXP: 20000 (#3)
Note that if we allowed the index to include offline members for fig 1.2, the output would be:
 g1 weeklyXP: 30 (#2), totalXP: 20000 (#3)
 g2 weeklyXP: 10 (#4), totalXP: 42000 (#1)
 g3 weeklyXP: 20 (#3), totalXP: 30000 (#2)
 g4 weeklyXP: 42 (#1), totalXP: 13373 (#4)