Merge branch 'release/1.3' into develop
HTML & CSS: chat page.
HTML & CSS: update chat.
Merge branch 'feature/chat' into develop
CSS & HTML: globals corrections.
HTML & CSS: slider corrections.
HTML & CSS: image header added on pages.
CSS: some cleaning.
Merge branch 'feature/corrections_01' into develop
Adding screenshots for release.
Merge branch 'release/2.0'