* THANKS TO viljaminojonen, and Finland355.

There was a newly-added escaped double quote without a corresponding,
escaped pair, followed by a newline, i.e.: `\"\n` in the Thai
translation which didn't seem to mess up the template parser nor the
browsers I tested it in, but it did add an unnecessary double quote on
the page so I removed it.

Also, let users request languages by URL via /?lang=foo *and* /foo (Thanks, arma)

when asked.