Improve Chinese translation.

Fixes #1.
Russian localization.

Also use font that supports cyrillic symbols.

Fixes #2.
Thai translation.

Closes #4.
README: update command to run jekyll locally.

New version of jekyll uses `jekyll serve` instead of `jekyll --server`.

Closes #5.
Turkish localization.

Closes #6.
Italian translation.
Fix formulae plural.
Arabic translation.

Also add RTL text support.

Closes #8.
Vietnamese translation

Closes #9.
Fix install instructions

GitHub broke the redirect logic we were using where it redirected the branch name to the only file in the repository. My fault really, it was a weird (but neat) redirect to depend on.
Change "mxcl/homebrew" refs to "Homebrew/homebrew"

Closes #10.
Shrink install text
Make language navigation into a drop-down list

Closes #12.
Escape this properly
Add space
Hebrew translation
Drop extra </p>
Drop vestigial xhtml stuff
Pass these elements as arguments
Typos and style improvments for russian l10n

Typos and style improvments for russian l10n