Add more descriptive description
Add FactoryGuy and FactoryGuyTestMixin to the tests jsHint
Add FactoryGuy and FactoryGuyTestMixin to the tests jsHint
Adds --save-dev to README

otherwise ```ember g ember-cli-data-factory-guy``` won't work.
Ember Factory Guy is supposed to be used only in test env.
* Do not include it in dev/production.
Merge pull request #2 from yratanov/patch-1

Adds --save-dev to README
Merge pull request #3 from yratanov/master

Use Ember Factory Guy only in test env.
Minor var fix
Update version in package.json
Load FactoryGuy in development

Because ember server's /tests endpoint shares vendor.js with the
development environment, FactoryGuy must be included in the development
vendor.js for the tests to pass there.