Improved SVG cleanup code

Aleksander Machniak

2016-01-16 ed1d212ae2daea5e4bd043417610177093e99f19

 tests/src/htmlbase.txt

@@ -6,5 +6,7 @@
<img src="img1.gif" />
<img src="./img2.gif" />
<img src="../img3.gif" />
<img src="cid:theCID" />
<img src="http://other.domain.tld/img3.gif" />
</body>
</html>