v1.3.38

Add ability to click scrollbar block to page left and right. Added
setting to toggle behaviour: scrollbarPaging (boolean) default: false.
Merge branch 'issue/328'
v1.3.38

Add ability to click scrollbar block to page left and right. Added
setting to toggle behaviour: scrollbarPaging (boolean) default: false.
Start offset not calculated correctly in WebKit

Fixed odd visual behaviour in scrollbars and infinite slider area on
WebKit browsers only.
resolved conflicts