Remove wrong section in README
Added corrected documentation back to readme for adding a processor to a Fixtures instance
Allow adding providers as well as replacing all of them
Update changelog
Merge branch '1.x'

Conflicts:
	src/Nelmio/Alice/Loader/Base.php
	src/Nelmio/Alice/LoaderInterface.php
Add install
Authorize magic __call way to populate object
Add a magic __call populator
Merge branch 'devster-1.x' into 1.x
Merging separate magic __call changes from 1.x
Merge branch 'devster-master'