Add double click tap zones for going to next/prev chapter and switches for changed swipe behaviour

defaults.lua

@@ -71,6 +71,12 @@ DTAP_ZONE_FORWARD = {x = 1/4, y = 0, w = 3/4, h = 1}
 DTAP_ZONE_BACKWARD = {x = 0, y = 0, w = 1/4, h = 1}
 DTAP_ZONE_BOOKMARK = {x = 7/8, y = 0, w = 1/8, h = 1/8}
 DTAP_ZONE_FLIPPING = {x = 0, y = 0, w = 1/8, h = 1/8}
+DDOUBLE_TAP_ZONE_NEXT_CHAPTER = {x = 6/8, y = 0, w = 2/8, h = 2/8}
+DDOUBLE_TAP_ZONE_PREV_CHAPTER = {x = 0, y = 0, w = 2/8, h = 2/8}
+
+-- behaviour of swipes
+DCHANGE_WEST_SWIPE_TO_EAST = false
+DCHANGE_EAST_SWIPE_TO_WEST = false
 
 -- koptreader config defaults
 DKOPTREADER_CONFIG_FONT_SIZE = 1.0        -- range from 0.1 to 3.0