/resources/scss/: moved vignettes code to _pmp.vignette.scss
/lib/: not good yet, but added referer redirect on POST
/controllers/front/ & /models/: added article state "activated" in model, and removed deactivated articles from front
/tools/oneShot/: made the Hello World article activated by default in createArticle
/resources/scss/: made variables for page box colors in common classes
/resources/scss/: added button-default class
/controllers/, /resources/ & /views/back-office/pages/: update articles page in BO with article list, button to add article and article activation/deactivation