Removed die() in exchange rates command
Merge pull request #105 from elcodi/bugfix/die-in-load-exchange-rates-command

Removed die() in exchange rates command
Small changes in split.sh script
Closes #106 Removed use statement
Removed full use statements in traits

* This change allow the code to avoid use collisions
Merge pull request #107 from elcodi/minor/remove-use-statement

Minor/remove use statement
Refactored NewsletterBundle

* Created custom NewsletterEventDispatcher
* Created EventListener to flush both subscribe and unsubscribe persist/flush actions
* Added/Deleted some tests
Merge pull request #108 from elcodi/feature/newsletter-bundle-refactoring

Refactored NewsletterBundle
Attribute and Value bundle

AttributeBundle defines the basic key/value model used to support
product configuration, i.e. descriptive attributes as well as "dimensions"
used to identify a particular variant of a product or product extras.
Fixes from php-cs-fixer
Fixed incorrect classname parameter and doctrine mapping
Added SKU for Product
Added Trait for price members in a Product
Initial product variant bundle structure and classes
Moved VariantInterface from Entity directory