fix adding coptlistener in pdf/djvu reader
set visible page count when loading document
more responsive in config dialog
tweaks on config dialog responsiveness
alternate landscape in crereader
refactoring onConfigChoose
tweaks on config dialog for crereader
add DLANDSCAPE_CLOCKWISE_ROTATION option in defaults.lua
mutable menu item text for 'Toggle page overlap'
mutable menu item text for 'Toggle floating punctuation'
add bookmark flipping feature
Bookmark flipping mode is toggled when long-holding the upper-right
corner of the screen. In this mood both the flipping icon and the dogear
icon are shown. And swiping west and east in this mode will flipping
only on bookmarked pages. Currently only pdf/djvu readers are supported.

This should implement feature request in #154.
swipe north/south in touch menu should also turn page
Merge pull request #431 from chrox/master

fix adding coptlistener in pdf/djvu reader