Lower ranking because they cannot auto-target

In order to be qualified as ExcellentRanking, auto-target is a must,
or the module has to default to a payload that's universal for
multiple platforms.  Otherwise you're wasting time in Pro.
Merge branch 'excellentrankings' of https://github.com/wchen-r7/metasploit-framework into wchen-r7-excellentrankings