Merge pull request #810 from houqp/new_ui_houqp

remove obseleted exit menu item
add fake tap input
bugfix: hack swipe to unlock after going out of screensaver
by feeding a fake tap at the bottom of the screen
close input dev after feeding
Merge pull request #811 from chrox/fake_tap

bugfix: hack swipe to unlock after going out of screensaver
remove original page when toggling flip mode off
rewind current page after initiating the scroll page states
Merge pull request #812 from chrox/flip_fix

bugfix: remove original page number after leaving flipping mode
add fine tuning of font size in koptinterface
cleanup: use lowercase option name && better reflow for vertical text
Merge pull request #813 from chrox/new_ui_code

add fine tuning of font size in koptinterface