add hold_release and hold_pan gestures
strip punctuation characters around selected word
add faked tap when closing dict window
add highlight in pdf reader
Merge pull request #120 from chrox/highlight

	 add highlight in pdf reader
update koreader-base
Merge pull request #121 from chrox/master

update to latest koreader-base
add bgcolor/fgcolor for TextWidget
add enable/disable method for Button widget
add strings in highlight dialog for translation
Merge pull request #122 from chrox/highlight

add strings in highlight dialog for translation
update translation