Favour composition over inheritance for Phones.

Also, this eliminates metaprogramming.
Merge pull request #13 from gwagener/phone_types

Remove metaprogramming and favour composition over inheritance for Phones
Programmatic access is not needed to a list of all CMUdict symbols.
Programmatic access is not needed to a list of all CMUdict phones.
Detailed CMUdict phones in a friendlier manner.
Merge pull request #14 from gwagener/removing_data_display

Removing data display methods