make gem lighter and remove a few things that are default

@bkeepers 
fixed

On Thu, Nov 6, 2014 at 8:55 AM, Brandon Keepers <notifications@github.com>
wrote:

> In dotenv-rails.gemspec:
>
> >    gem.homepage      = "https://github.com/bkeepers/dotenv"
> >    gem.license       = 'MIT'
> > -
> > -  gem.files         = `git ls-files | grep rails`.split($\)
> > -  gem.test_files    = gem.files.grep(%r{^(test|spec|features)/})
> > -  gem.name          = "dotenv-rails"
> > -  gem.require_paths = ["lib"]
> > +  gem.files         = `git ls-files README.md LICENSE lib | grep rails`.split($\)
>
> grep rails will remove README.md and LICENSE (which was an issue before).
>
> —
> Reply to this email directly or view it on GitHub
> <https://github.com/bkeepers/dotenv/pull/147/files#r19957352>.
>