Remove unneeded code.
Merge pull request #3 from jules27/landing_page

Landing page
Merge branch 'master' into software_hardware_pages
Add tests for hardware page.
Clarify a test in landing page.
Update the software page according to the mockup, and modify hardware page and CSS file to work with the software page.
Add tests for software page.
Merge pull request #4 from jules27/software_hardware_pages

Software hardware pages