Run digest cycle after executing vsScrolledToEnd

[bodia-uz]

Currently, angular does not run digest cycle after executing vsScrolledToEnd method. This PR adds $scope.$apply() to run digest cycle after vsScrolledToEnd

[ppryor63]

I agree, I tried to implement "Searching... <Cancel>" display when scrolling, but without $digest cycle being run I never see the message. I set the flag isSearching inside the service and it worked on first search but not when called from vsScrolledToEnd. If this patch isn't incorporated what are alternatives?

[bodia-uz]

@ppryor63

If this patch isn't incorporated what are alternatives?

Run digest after scope data changed. Example:

function onVSScrolledToEnd() {
  changeScopeData();
  $scope.$applyAsync();
}