Revert "Revert "another attempt to workaround against feedtree scroll issues""

This reverts commit 9b176694f5ce928ac76984a3b1518353aa9cad5a.

Conflicts:
	tt-rss.css
initial
updated german translation
mailto: use rawurlencode
Use CSS3 ellipsis in .postTitle.

CSS3 property which makes cut-off text look smoother.
implement upload-related support for open_basedir

Conflicts:
	include/rssfuncs.php
	include/sanity_check.php