Make superset standard rules explicit

Explicitly include rules in the WordPress superset standard that reference the
WordPress-Core, WordPress-Extra and WordPress-VIP subset standards.

Fixes #227 where non-WordPress sniffs were not being applied.
Remove naming exclusion

See https://github.com/WordPress-Coding-Standards/WordPress-Coding-Standards/pull/229#issuecomment-54094628

See #229
Merge pull request #229 from WordPress-Coding-Standards/consolidate-superset-rules

Make superset standard rules explicit