Merge branch 'release/1.3.0'
Merge branch 'release/1.3.1'
Merge branch 'release/1.3.2'
Merge branch 'release/1.3.3'
Merge branch 'release/1.3.3'
Merge branch 'release/1.3.4'
Add error if using multistep and context is currently not a specific shop

Also limit the language dropdown according to current shop context
Changed elseif to if when checking shop context
Merge branch 'feature/improve-shop-context-settings' into develop
Fix isController check to take into account that some PS 1.5 versions donate have the php_self property defined in all controllers
Bump version
Remove everything test related
Passed the shop's front  language to the account creation API.
Refactor and code styles
Merge branch 'feature/account-create-language' into develop
Merge branch 'hotfix/1.3.5'
Merge branch 'hotfix/1.3.5' into develop
Merge branch 'release/1.3.6'
Add missing shop_lang and unique_id params to iframe url
Add license blocks to every file and change module license to AFL