Use " as default quotes

* Switch to " for default quotes
4 jobs for default-quotes in 1 minute and 10 seconds (queued for 1 second)
Status Job ID Name Coverage
  Lint
passed #1727
lint:lint-php5.4

00:00:40

passed #1728
lint:lint-php5.6

00:00:39

passed #1729
lint:lint-php7.0

00:00:37

 
  Codesniffer
passed #1730
codesniffer

00:00:29