NEWSBEUTER: Add some feeds: dunst, hn, lxf, /.

Adds the dunst commit feed, the Hacker News feed, the Tuxradar feed
and the Slashdot feed.

.config/newsbeuter/urls

@@ -22,6 +22,7 @@ http://code.google.com/feeds/p/autopair/svnchanges/basic cvs
 http://code.google.com/feeds/p/go/hgchanges/basic cvs
 http://git.cs.fau.de/?p=re06huxa/herbstluftwm;a=atom cvs
 https://github.com/diaspora/diaspora/commits/master.atom cvs
+https://github.com/knopwob/dunst/commits/master.atom cvs
 
 #-----[ Programming ]-------------------------------------------------
 http://www.reddit.com/r/cpp/.rss devel
@@ -37,6 +38,7 @@ http://www.reddit.com/r/C_Programming/.rss devel
 http://feeds.feedburner.com/FalloutTutorials devel
 http://www.devarticles.com/rss.xml devel
 http://www.script-tutorials.com/feed/rss/
+http://news.ycombinator.com/rss
 
 #-----[ Linux and FLOSS ]---------------------------------------------
 http://www.reddit.com/r/commandline/.rss linux
@@ -60,6 +62,7 @@ http://www.warpedsystems.sk.ca/backend/index.xml linux
 http://www.reddit.com/r/archlinux/.rss linux
 http://www.reddit.com/r/linuxquestions/.rss linux
 http://www.echolinux.com/rss
+http://www.tuxradar.com/rss
 
 #-----[ Emacs ]-------------------------------------------------------
 http://wordpress.com/tag/emacs/feed/ emacs
@@ -118,3 +121,4 @@ http://feeds.feedburner.com/thisisindexed/SGWm
 #-----[ Misc ]--------------------------------------------------------
 http://wallbase.cc/rss misc
 http://www.mailinator.com/rss.jsp?email=ryuslash misc
+http://rss.slashdot.org/Slashdot/slashdot