Support for guilds with multiple characters of the same name in the same guild but on different realms.

Wow now supports having multiple characters with the same name but on
different realms on joint realms.  This update adds realms to being used
as a filter criteria for identifying character uniqueness.  It updates a
unique key in the DB and also updates the character claim screen to list
out realms in the options.
Fix to previous commit, get proper member id to array for updates.

Previous commit had an error where it wouldn't get the proper member_id.
This resolves it.
Fix Roster Update Issue with Multi-realm guilds

Previously it assumed the guild realm when getting member but it needs
to pull from the member list.
Merge pull request #251 from AJH16/dev-140

Fix for multiple toons with same name in cross-realm guild.