fix visible_area recalculate for manual crop in reflow mode
always make sure we switch to page mode in manual cropping
Merge branch 'new_ui_fix' of git://github.com/houqp/kindlepdfviewer into new_ui_code
fix visible_area recalculate for manual crop in reflow mode
Merge pull request #747 from chrox/new_ui_code

fix visible_area recalculate for manual crop in reflow mode