Revert "use cardview for article fragment"

This reverts commit de998a1e927f93344bee8f881b8876f27f629eca.
remove flavor image borders
add workaround against UI flicker bug
add flavor image loading progressbars
try to only animate flavor images if they are not cached yet
UIL: use time-limited disk cache instead of flushing it on startup
flavor images: show X more label if more than one image
 fix crash on loadmore row
bump version