SW-5461 convert all config and plugin config checkboxes to comboboxes
SW-6759 - code styling & snippet fix for default template
SW-5461 beautify code
SW-6759 - snippet fix
SW-6759 - snippet fix
Merge pull request #512 in SW/shopware from bugfix/master/sw-5461-convert-config-checkbox-to-combobox to master

* commit 'efe849c18644c2b9b7979a3043ae91da54805610':
  SW-5461 beautify code
  SW-5461 convert all config and plugin config checkboxes to comboboxes
Merge pull request #511 in SW/shopware from feature/master/sw-7009-api-performance to master

* commit '8f0c12d839693edad32f5916a9693bcee39bfead':
  SW-7009 - Wrap API-Flushes in transactions. Improves performance
  SW-7009 - Reuse available annotations-reader
SW-6963 add directory permissions check to plugin manager
SW-6963 remove superflous action and refactor code
Merge pull request #515 in SW/shopware from bugfix/master/sw-6963-add-directory-permissions-check-to-plugin-manager to master

* commit '02a1f3bc2be61c899dc8886170c7277f138b4099':
  SW-6963 remove superflous action and refactor code
  SW-6963 add directory permissions check to plugin manager
SW-5244 fix config translation
Merge pull request #516 in SW/shopware from bugfix/master/sw-5244-fix-config-translation to master

* commit 'af7d1307737620dac54bfa56d29884d7c18428ce':
  SW-5244 fix config translation
SW-6970 fix typo in readme.md and add upgrade.md
SW-6970 fix whitespace
SW-5370 - Add before-create-action-columns event. Implement function to configure a function for each column creation.
SW-7018 fix filter remove link and backend set translation
Merge pull request #518 in SW/shopware from bugfix/master/sw-7018-fix-filter-remove-link-and-set-translation to master

* commit '9eeaa76820617f8c12211ea9f95aca2934902ebf':
  SW-7018 fix filter remove link and backend set translation
SW-6983 fix typo and add snippet ini
SW-6982 add missing default template css style
SW-6982 add fallback styling for customized templates