Fixes/Enhancement

I've referenced the individual issues - which have the requested feed/website informations - in the commit messages. In summary these are:

5576d45 fixes https://github.com/fguillot/miniflux/issues/266#issuecomment-64958152:

http://www.ynet.co.il/Integration/StoryRss544.xml
http://www.calcalist.co.il/integration/StoryRss4.xml
http://www.makers.co.il/mfs/blog_external.php?type=RSS2&bloguserid=4

b22f2ae fixes fguillot/miniflux#267:
9eb9ffa fixes a double encoding bug within the content graber:

http://rss.feedsportal.com/c/629/f/502199/index.rss

8f54b74 allows multi directional items within an atom feed. The feed in question is the atom variant of a multi directional feed that was reported failing in fguillot/miniflux#266:
97b67f8 fixes the wrong reported Website URL:

http://planet.hamakor.org.il/atom.xml

a4218f7 is needed to display the feed title in the right direction within miniflux