hinting one page by default
since reflowed page has a minimum height of screen height.
There are no more than two pages displayed on screen
simultaneously even in scroll mode.
strip unnecessary parts in update packages
update pot file
Merge pull request #523 from chrox/master

hinting one page by default
Update language.lua
Merge pull request #524 from danan72/patch-1

Update language.lua - Polish language translation
fix input timer queue
if new timer has a timeout later than a timer in queue, the
new timer will be discarded and never be pushed into timer queue.
This is fixed by pushing new timer without timeout checking
and then sorting the queue according to timer timeouts.

This should fix #520 and #495.
add fallback_font option in G_reader_settings
Merge pull request #525 from chrox/master

fix input timer queue
fix kobo frozen when exiting koreader
This should fix #509.
Merge pull request #526 from chrox/master

fix kobo frozen when exiting koreader.

It doesn't work sensibly anyway. It should have taken a screenshot of the homepage of nickel. Instead it gives the last screen before koreader, which is the png-file of koreader. 
Just quitting the png-file and returning to Nickel home screen would be sufficient. No idea how to do that, though.
UPDATE readerfrontlight.lua

Code is added to switch between Kobo Aura (Phoenix) and others.

`ReaderFrontLight`, `self.ges_events` and the `function ReaderFrontLight:onAdjust` are now different for Kobo Aura. This enables me to do a two-fingered-pan over approx 1/4 Screenheight to change from full on to full off.

The difference to the default implementation is that both the `rate` and the `msg` are omitted and the `steps` are different.

FURTHER ROOM FOR IMPROVEMENT: It would be an improvement to get a final message after the two-fingered-pan is done stating the achieved setting.

Signed-off-by: Markismus <zulde.zuldemans@gmail.com>
code refactoring
Merge pull request #527 from koreader/Frontlight

UPDATE readerfrontlight.lua
replace paging and zoomming order in readerui
code refactoring
Merge pull request #528 from chrox/master

code refactoring
reset configurable before loading new options
cleanup: expand tab to 4 spaces
Merge pull request #531 from chrox/retab

cleanup: expand tab to 4 spaces