update gitignore
v1.3.37

Added public methods: nextPage and prevPage. Allow the user to navigate
the width of the stage regardless of the slide width.
Ref issue #328

Add ability to click scrollbar block to page left and right. Added
setting to toggle behaviour: scrollbarPaging (boolean) default: false.
Merge branch 'demo' of https://github.com/iosscripts/iosslider into demo
Merge from master