add common useless OS files in .gitignore
Let WEBrick serve SVGs with proper content-type
improve text about taxes in "you need to know" (fixes #72)
Merge pull request #88 from turboroot/master

Display SVG graphics properly when serving files with WEBrick
add each wallet name under its icon
Fix case typos.
Merge pull request #89 from schildbach/fix-typos-wallet

Fix case typos.
HTML/CSS improvements for "choose-your-wallet" and other minor fixes
fix IE bug with vertical-align and lines break
adapt choose-your-wallet and language menu for W3C validation
drop html 4.01 transitional (fixes #84)
improve translation system
jekyll now automatically generates sitemap
alternate hreflang is now correctly handled by sitemaps
language bar now gracefully associate with the translated equivalent of the page
update README with updated translation guidelines and instructions