[fix][#30980] Undefined variable extension
Merge pull request #1175 from phproberto/30980

[fix][#30980] Undefined variable extension
Changelog
 # [#30982] Fast links for item language associations management. Thanks
Roberto Segura.
(Fix #1178)
 # [#30956] No published field in Contacts Component
 $ Adding installation languages: Albanian sq-AL
Fix failing system tests due to markup changes.
Modifications to PHPCS config
Integrate PHPCS into Travis-CI
Fix CS errors from Travis run
Sync OperatorSpacingSniff