More tuning on the loading up of the group info.

Author Mere <rift@dokein.co.uk>
Author date 2013-06-15 14:30:12
Author local date 2013-06-15 15:30:12 +0100
Committer Mere <rift@dokein.co.uk>
Committer date 2013-06-15 14:30:12
Committer local date 2013-06-15 15:30:12 +0100
Commit bc241046d1befd0a7b52ad88c2ce8e7b79d8d6c1
Tree 10a86e9d3d069e499732c414f7586b4d6ee141b3
Parent e58c9773cd54e835c9edd8e0be9716f99cb464d8
More tuning on the loading up of the group info.

If a spec doesn't have a unitId force a change through to clear it, it removes strays from a previous raid during logon.

If a player is solo, and that playerinfo object already exists for them, don't recreate one.

Tidy up a few comments.