PROJ-55: Added html.erb files for both header and footer. Added rendering of those in application.html.erb
PROJ-95: Added basic header and footer, with corresponding stylesheets.
PROJ-95: Added few header style
PROJ-95 Completed footer (dummy style)
PROJ-98 AND PROJ-95 : Modified style, added landing page content for users.
Merge branch 'homepage' into develop
Few visual and behavioral fixes following the homepage merge.