Adds check of the length of code in the items and in the admin interface.
Changed exception message.
Using a central abstract method for code checks.
Merge pull request #151 from doleiynyk/2012-04-24_code_not_longer_than_32_chars

Adds check for the length of the code in the items and in the admin interface
Merge pull request #159 from nsendetzky/master

Fixes configuration directives for delivery address, enforces character case for language and country ID
Merge pull request #160 from nsendetzky/master

Changes property visibility to private
Merge pull request #161 from nsendetzky/master

Improves config implementations and adds performance tests
Merge pull request #162 from nsendetzky/master

Adds position to plugin items
Merge pull request #163 from nsendetzky/master

Implements getAttributeItem() method in order product/service items, improves tests and usability
Merge pull request #164 from nsendetzky/master

Adds configuration option to disable adding new billing or delivery address
Removes unnecessary method _getSiteIds() from MShop_Common_Manager_Abstract
Merge pull request #165 from dahoffmann/master

Remove unnecessary method _getSiteIds() from MShop_Common_Manager_Abstract
Merge pull request #166 from nsendetzky/master

Fixes langid/countryid definition, fixes attribute code, removes product links in e-mail template again
Adds missing abstract keyword to class MShop_Common_Factory_Abstract
Merge pull request #167 from dahoffmann/master

Adds missing abstract keyword to class MShop_Common_Factory_Abstract
Merge pull request #168 from nsendetzky/master

Fixes URL parameters, removes hidden attribute comments and centralizes tax calculation
Merge pull request #169 from nsendetzky/master

Improves button fonds and combines button CSS
Merge pull request #170 from nsendetzky/master

Improves quick search and mini basket
Merge pull request #171 from nsendetzky/master

Replaces top menu in demo application by an optimized one for mobil devices
Merge pull request #172 from nsendetzky/master

Minor layout improvements and fix for null values in address item