Mix in Klavika font on index and overview

The fonts are served from Typekit.com, you will not see them
unless you are loading the site from:
- localhost
- 0.0.0.0
- 127.0.0.1
- *.apache.org
- *.github.io

I can add more domains in our Typekit configuration.
Merge pull request #1 from timanglade/gh-pages

Mix in Klavika font on index and overview
Improve contrast & vertical rythm
Update masthead and navigation
Minor change to masthead description
Add Apache to logo
Re-align masthead for new logo
Merge pull request #2 from timanglade/gh-pages

Improve contrast & vertical rythm
Added missing navigation
Added type-kit
Fixed side nav layout for mobile view
Fixed overlap (header + container) problem of responsive view (tablet)
Fixed dual scrollbar of mobile view
Apply title-logo responsive width
Fixed main description, download button margin with responsive view (mobile, tablet)
Use darker blue for higher contrast on white text
Merge pull request #3 from timanglade/darker-blue

Use darker blue for higher contrast on white text