Optimize all SVGs

Passed with svgo 0.4.2 <https://github.com/svg/svgo>, then prepended
'<?xml version="1.0" encoding="UTF-8"?>' prolog to each file since
svgo sees it fit to remove it and that breaks file type detection.
svgo truncated all numerical values to a maximum of 3 decimal places
of precision.

world_map.svg: Removed very tiny separated path segments (by
insetting and then outsetting the path). Scaled down to the size at
which the image is used. This makes the image smaller than 32 KiB so
it will now be inlined be resource loader instead of beign requested
separately.

Image            orig     new
clear            1268     298
close            1370     369
icon-language    2560    1816
search           1025     480
world_map       71624   19488
Merge pull request #129 from Nikerabbit/svgo

Optimize all SVGs
Localisation updates from https://translatewiki.net.
added dxʷəlušucid [ISO:639-3:lut] to langdb.yaml and updated jquery.uls.data.js wuth ulsdata2json.php
Lojban to lower case

Reported by Evropi on IRC
http://www.lojban.org/publications/level0/brochure-utf/overview.html
Merge pull request #131 from Nikerabbit/lojban

Lojban to lower case
Merge branch 'master' of github.com:wikimedia/jquery.uls

Change-Id: I8270730779a194796ded1c1c82fe48686866c075
Test: Add lut to the list of languages in AM region

Change-Id: Ic21bf47945e5501880bc221b47d128f6bd0fbbf6