chore(package): update gulp-sass to version 2.3.1
chore(package): update gulp-sass to version 2.3.1

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andreasbovens/devopera,andreasbovens/devopera,andreasbovens/devopera,operasoftware/devopera,operasoftware/devopera,operasoftware/devopera,operasoftware/devopera,shwetank/devopera,shwetank/devopera,shwetank/devopera