Merge pull request #649 from houqp/houqp-master

refactor(doc): use ffi binding in picdocument
revert zip file handler to crereader
It seems that fb2.zip is a conventional format for fb2 with compression
which cannot be handled properly by mupdf.
This should fix #642.
Merge pull request #650 from chrox/master

revert zip file handler to crereader
match distance when gesturerange has scale field
register swipe diagonal gesture range to screenshot
for non-multitouch devices

This PR is intended to substitude #652 which needs tweaking
double tap zone for screenshot.
fix init hyphenation dictionaries
Merge pull request #653 from chrox/master

register swipe diagonal gesture range to screenshot
add persistent option for defaults.lua
Merge pull request #656 from Markismus/master

Persistent defaults.lua option added.
offset and resize Kobo Aura screen because of obscuration by black bezel
Merge pull request #661 from Markismus/master

Offset and resize Kobo Aura screen because of obscuration by black bezel
Delete KoboAuraTapHomeIcon.bin

Pazos' change of koreader_kobo.sh makes these binary files obsolete.
Delete KoboMiniTapHomeIcon.bin
Now button events are passed to koreader and it exits cleanly to Nickel
Merge pull request #662 from Markismus/master

Now button events are passed to koreader and it exits cleanly to Nickel
sort plugins in path order
add peer-to-peer file sharing plugin ZSync
Merge pull request #664 from chrox/zsync

add peer-to-peer file sharing plugin ZSync
fix zsync cannot run properly in Kindle due to firewall
update pot file