/controllers/front/ & /views/pages/front/: removed temporary CV page
/controllers/back/: added titles to pages in back-office
/controllers/front/: bis for front
/controllers/front/: udpated Twitter links fetch
/controllers/back/ & /views/pages/back/: increased number of visible lines and fixed empty lines bug
/views/pages/front/: added tooltips in front page
/views/pages/: reworked button menus a bit on both front and back
/controllers/back/ & /views/pages/back/: reworked article list page and added page to edit articles
/views/pages/front/: added tooltips to articles page in front