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
login page: remove version
batch feed editor: remove title and feed url because batch editing those makes no sense whatsoever
fix inverse status not being set correctly for filters when creating
them
fix inverse rules not being saved/restored properly through opml
replace floIcon with jimIcon from https://github.com/jimparis/jimIcon
floicon wrapper: fix short tag
another counter node positioning hack
add experimental counterNode text shadow
Fix version in preferences footer