Test image and text added for the banner image.
Styling for the banner image.
Re-styled the banner page.
Defined "highlight" class to highlight text.
Testing out different backgrounds for different sections.
Added some styling changes

1. Reduced padding at the bottom of the page.
2. Added a background for the sections of the page (although not part
of the banner, committing with this branch).
Useless banner tagline.
Compressed banner image
Updated banner image with dots and h2 font colour and weight.
Merge pull request #55 from Apex-net/banner-image

Banner image and styling for the section-background at the bottom.