We now only initialise Faker once
Allow the user to change the Faker Locale
Set the Faker locale in our tests to show how it can be done
Update readme with Faker locale
CS fixes
Merge pull request #178 from GrahamCampbell/fixes

CS fixes
Lazy instantiate the faker
Corrected function visibility
Merge pull request #179 from GrahamCampbell/lang

Lazy instantiate the faker
Merge pull request #177 from thephpleague/faker-changes

Faker changes