Add a number format entity

- Adds a number format entity.
- Adds a importer for number formats.
- Automatically imports the number formats for the enabled languages.
Merge pull request #79 from Jbekker/add-numberformat-entity

Add a number format entity
Fix typo in callback.
Update the README with better install instructions, updated addressing section.
Issue #2333375 Format Price field using NumberFormatter.

- Use the commerceguys\intl library for formatting the price field.
Improve the currency form.
Added links to mentionned projects
Clean up the number format form.
Merge pull request #82 from JulienD/patch-1

Added links to mentionned projects
Merge pull request #81 from Jbekker/commerce-price-use-formatter

 Issue #2333375 Format Price field using NumberFormatter.
Stop injecting the entity manager into the delete forms.
Fixed product validation to work again, and be inline with #2110345
Merge pull request #84 from joshuataylor/commerce-product-validation

Fixed product validation to work again, and be inline with #2110345
Fix travis to use the new autoload workaround in settings.php
Merge pull request #85 from joshuataylor/travis-ci-settings

Fix travis to use the new autoload workaround in settings.php
Update Drupal::l to be inline with new changerecord
Merge pull request #86 from joshuataylor/core-updates

Update Drupal::l to be inline with new changerecord
Basic product view integration
Merge pull request #90 from StryKaizer/product-view

Basic product view integration
Issue #2348787 by bojanz, vasike: Stop injecting the entity manager into the forms (CommerceOrderTypeForm and CommercePaymentInfoTypeForm).