cubiq/iscroll — pull request #667 by jtyjty99999 (2014-04-04 02:34:05+00:00)
Title: add topOffset option and use minScrollY to calculate the scrollerHeight and maxScrollY

iscroll4 support topOffset option,this is very useful for pull down refresh(when you refresh the pull down mention will disappear).I added in iscroll5, option add topOffset and refresh use it to be minScrollY,and calculate the scrollerHeight and maxScrollY use minScrollY