Update README.md
Add webfonts task
Merge _main.scss into _normalize.scss, move vars, mixins and helpers files into core/
Fix main.scss call into app.scss
Better default theme
Fix app.scss imports
Add some useful JS libs to drop jQuery/Zepto
Update packages
JS minor fix
Use environnements for build or not files for production
Update README.md
Merge branch 'master' of github.com:onaliugo/gulp-starter