Rewrite What's this all about? on About page
Project namem

"Marker" not "Maker" (to emphasise QA aspect of project and keep name apart from G Map Maker)
Blocks 2 and 3 of About page
Update about.html.erb
Merge pull request #4 from RobJN/patch-1

Blocks 2 and 3 of About page
Merge pull request #3 from RobJN/patch-3

Update About page
Merge branch 'master' into nls