Merge branch 'hotfix/1.3.14'
Merge branch 'release/1.4.0'
Starting 1.4.1 hotfix branch
Fixed sending e-mails did not work in PHP < 5.3 (#576)
Product object is now also available in the product list template
Improved changelog
Minimum order amount was incorrect when lowering cart amount (#587)
Truncate product cache when using variants quick edit (#586)
Declaration of ModuleIsotopeRelatedProducts::findProducts() should be compatible with ModuleIsotopeProductList (#575)
Fixed wrong URL in the Google XML sitemap (auto_item) (#581)
Member-restricted rules did not work with postsale script (#580)
Order conditions form was not validated if forwardToReview is enabled (#591)
Added ProductCollectionItem::increaseQuantityBy and ::decreaseQuantityBy
CS
Added several new models (they're just basic containers)
Use false as "not-initialized" value, because "null" is possible
Do not use the findBy* magic in Model
ProductCollectionItem can find it's ProductCollectionDownload
CS
Use ProductCollection::setModified to empty the cache