Merge pull request #634 from chrox/master

add night mode option that inverts screen color
fix(build): add git submodule sync to fetchthirdpary
Merge pull request #636 from houqp/houqp-master

fix(build): add git submodule sync to fetchthirdpary
standarize script names for kobos
Merge pull request #637 from pazos/master

standarize script names for kobos
key event map for Android
the Back key on Android should close the popup window and menu
pass onClose gesture to Menu widget
use two finger swipe west/east to close TOC and bookmark respectively
tweaks of font size