Add ability to validate shipping addresses more stringently (via 3rd party api, for example).
Make some methods protected
Merge pull request #1026 from umpirsky/fix/extensibility-10-02-2014

Make some methods protected
Extensible order shipping states
updating translations in spanish for CoreBundle
Merge pull request #980 from Richtermeister/validate-shipping-address

Add ability to validate shipping addresses more stringently (via 3rd party api, for example).
Converting translations to YAML