PHP's built-in functions fputcsv and fgetcsv are not RFC-4180 compliant and include an escape character that's not defined in the spec.
This results in escaping characters that should not be escaped.
This commit disables this escaping mechanism.
All entities will now be created through a single factory (including the Writers).
Also, added a EntityFactory::createRowFromArray() to make it easier to create rows
This commit introduces Row and Cell entities, that will replace the arrays passed in previously.
It also adds support for Cell styling (instead of Row styling only).
This will improve the management of options and simplify some methods' signatures.
This commit will also help moving the code to a better state regarding Dependency Injection.
