removing ruby env enforcement

generally you don't want to enforce an environment for gems. it's okay
for applications, but not gems.
removing Gemfile.lock

it's another one of those files that you really only want to track if
this is an application, but not a gem
moving requires around

adding contents to lib/hawkins.rb so that a user of this library only
has to include a single name.
Merge branch 'happy-gems' of git://github.com/komidore64/hawkins into komidore64-happy-gems
Merge branch 'komidore64-happy-gems'