Update stack trace while moving sampling slider

Summary: Not just when releasing! I definitely thought this worked before, but perhaps not...

Test Plan: Dragged the "Time" slider for the sampling profiler, and saw the stack trace update while I dragged it, not just after mouseup.

Reviewers: alan

Reviewed By: alan

Differential Revision: http://phabricator.khanacademy.org/D7255

static/js/profiler.js

@@ -267,7 +267,7 @@ var GaeMiniProfiler = {
             .find(".settings input")
                 .change(function() { GaeMiniProfiler.setCookieMode(this); return false; }).end()
             .find(".sample-number-slider")
-                .change(function() { GaeMiniProfiler.updateSampleNumber(this, data); }).end()
+                .on("input", function() { GaeMiniProfiler.updateSampleNumber(this, data); }).end()
             .find(".ignore-frames-slider")
                 .on("input", function() { GaeMiniProfiler.updateSampleNumber(this, data); }).end()
             .click(function(e) { e.stopPropagation(); })