Merge branches 'new_ui_code' and 'new_ui_code' of github.com:houqp/kindlepdfviewer into new_ui_code
Merge branch 'new_ui_code' of github.com:hwhw/kindlepdfviewer into new_ui_code
Merge branch 'new_ui_code' of github.com:hwhw/kindlepdfviewer into new_ui_code
Merge branch 'new_ui_code' of github.com:hwhw/kindlepdfviewer into new_ui_code
Merge branch 'new_ui_code' of github.com:hwhw/kindlepdfviewer into new_ui_code
add close button toggle for menu widget
add calling item.callback() as default onMenuChoice action
add menu to FileManager
add manual page crop for pdf/djvu documents
use hold_release event to cancel page crop
move BBoxWidget to bbox.lua in ui directory
cleanup unused debugs
Merge pull request #733 from houqp/new_ui_code

add menu to filemanager
add current bbox in page rendering hash
So that changing bbox could take effect on current page.
hash current bbox explicitly
Merge pull request #734 from chrox/man-crop

add manual page crop for pdf/djvu documents
Merge branch 'new_ui_code' of github.com:hwhw/kindlepdfviewer into rotate

Conflicts:
	frontend/ui/reader/readerconfig.lua
properly close ReaderConfig on screen rotate