fix nsfw plugin
hide warning when checking for tt-rss tables if tables are not present
nsfw: fix wrong delimiter when expanding tag_cache
support custom order in generated feeds (closes #709)
opml: fix filter parameters inverse and title not being properly imported from OPML
add experimental floating title when scrolling long articles in combined mode
limit floatingTitle width
use text-overflow in floatingTitle
clamp content preview to single line in three panel mode
move notify a bit to the left so it woulnd't obscure browser scrollbar
unify excerpt font sizes for CDM and 3 panel mode, use single line headers in expandable mode