Fix indenting and quotes in gulpfile.js.
Fix indenting and quotes in gulpfile.js.

niallobrien/generator-gulp-foundation,keitoaino/generator-tapp,chocolateslice/generator-gulp-foundation,niallobrien/generator-ee-foundation,mininao/generator-gulp-foundation,chocolateslice/generator-gulp-foundation,niallobrien/generator-gulp-foundation,keitoaino/generator-tapp,miruken/generator-miruken-angular,miruken/generator-miruken-angular,niallobrien/generator-gulp-bootstrap,mininao/generator-gulp-foundation,niallobrien/generator-gulp-bootstrap