fixes "undefined index" notice
Merge pull request #228 from WGH-/installer_undefined_index

fixes "undefined index HTTPS" notice in installer script
add rel=noreferrer to article links
Update messages.po

Typo in translation.
Merge pull request #229 from skibbipl/patch-1

Update messages.po
better root element detection for atom content type xhtml (closes #720)
Add missing hotkey handler
Merge pull request #230 from lotrfan/hotkey_fix

Add missing hotkey action
Remove content when an article is dismissed
Fix incorrect function name in exception handling
Add some checks to see if the content element exists

This *might* help dismissal not break when not using combined mode.
Merge pull request #233 from lotrfan/dismiss

Remove content when dismissing
fix 2week catchup parameter
make floating title less cpu intensive
only do article update operations once when scrolling

I discovered that DOM operations and function calls were done several times inside the 100px mirror when scrolling through articles. Especially painful on seamless scrolling systems like Mac OS, where dozens of updates would slow down this part dramatically. This change fixes it.
Merge pull request #236 from levito/patch-5

only do article update operations once when scrolling
add af_dilbert
af_dilbert: fix typo
do not catchup newly subscribed feeds
parser: remove atom <source> element