Removed NProgress because not compliant with overall design
Refactored header to be HTML5 friendly and reduce amount of markup
Revamped Navigation to work with new headers, optimized smooth scrolling to allow additional code to be processed
Updated comments to reflect changes
Temporary commit for Check development
Added a precheck section that monitors variables value in real time, added basic btn behavior for check sections.
Added limits for sliders range and corresponding CSS.
Added stripes to range limit on sliders, added tooltip with possible values on limited sliders
Changes from François: semantics in Check section
Added Check page design & drawing code logic
useless commit to refresh heroku...
Merged from master
Added images for the other sections