Improve IE 10 pointer capture
Improve IE 10 pointer capture

IE 10 uses a concept of pointer capture to allow elements to continue
receiving events when the pointer moves outside them; it turns out
pointer capture isn't exclusive, so always request it to prevent
cancel/end events from being lost in edge cases.  Fixes loss of
responsiveness on IE 10.

realyze/ftscroller_gsap_test,npmcomponent/ftlabs-ftscroller,ftlabs/ftscroller