Update jquery.uls from upstream.

Upstream: https://github.com/wikimedia/jquery.uls
Changes:
1. Optimize png images with optipng -o7
2. Optimize language icon SVG
3. Optimize the search and worldmap svgs
4. Localization updates.

Change-Id: Ic921b31830b0d7a1424d9d663924e92b9c5268f1

lib/jquery.uls/images/search.svg

@@ -1,36 +1,16 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 <!-- Created with Inkscape (http://www.inkscape.org/) -->
-
-<svg
-   xmlns:dc="http://purl.org/dc/elements/1.1/"
-   xmlns:cc="http://creativecommons.org/ns#"
-   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
-   xmlns:svg="http://www.w3.org/2000/svg"
-   xmlns="http://www.w3.org/2000/svg"
-   version="1.1"
-   width="32"
-   height="32.000031"
-   id="svg2">
-  <defs
-     id="defs4" />
-  <metadata
-     id="metadata7">
-    <rdf:RDF>
-      <cc:Work
-         rdf:about="">
-        <dc:format>image/svg+xml</dc:format>
-        <dc:type
-           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
-        <dc:title></dc:title>
-      </cc:Work>
-    </rdf:RDF>
-  </metadata>
-  <g
-     transform="translate(-576.51154,-295.86765)"
-     id="layer1">
-    <path
-       d="m 579.88857,299.24469 c 4.50273,-4.50274 11.80568,-4.50272 16.3085,6e-5 4.07216,4.07223 4.41687,10.42533 1.12323,14.93559 l 11.19124,11.19116 -2.49615,2.49618 -11.19125,-11.19116 c -4.51016,3.29363 -10.86328,2.9491 -14.93549,-1.12339 -4.50281,-4.50264 -4.50279,-11.80558 -8e-5,-16.30844 z m 2.12176,2.12187 c -3.34229,3.34214 -3.38386,8.76418 -0.0416,12.10657 3.34232,3.34223 8.80592,3.34224 12.1482,-2e-5 3.34223,-3.34239 3.30056,-8.76429 -0.0417,-12.10668 -3.3422,-3.34213 -8.72263,-3.34213 -12.06491,1.3e-4 z"
-       id="path3017-6-34-0"
-       style="fill:#555555;fill-opacity:1;stroke:none" />
-  </g>
+<svg xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns="http://www.w3.org/2000/svg" height="32" width="32" version="1.1" xmlns:cc="http://creativecommons.org/ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
+<metadata>
+<rdf:RDF>
+<cc:Work rdf:about="">
+<dc:format>image/svg+xml</dc:format>
+<dc:type rdf:resource="http://purl.org/dc/dcmitype/StillImage"/>
+<dc:title/>
+</cc:Work>
+</rdf:RDF>
+</metadata>
+<g transform="translate(-576.51154,-295.86765)">
+<path fill="#555" d="m579.89,299.24c4.5027-4.5027,11.806-4.5027,16.308,0.00006,4.0722,4.0722,4.4169,10.425,1.1232,14.936l11.191,11.191-2.4962,2.4962-11.191-11.191c-4.5102,3.2936-10.863,2.9491-14.935-1.1234-4.5028-4.5026-4.5028-11.806-0.00008-16.308zm2.1218,2.1219c-3.3423,3.3421-3.3839,8.7642-0.0416,12.107,3.3423,3.3422,8.8059,3.3422,12.148-0.00002,3.3422-3.3424,3.3006-8.7643-0.0417-12.107-3.3422-3.3421-8.7226-3.3421-12.065,0.00013z"/>
+</g>
 </svg>