fixed access violation while dispose of BrowserWrapper when closing a popup
new pc an whitespace is messed again
Merge pull request #449 from JanEggers/FixedAccessViolationWhenClosingPopup

Fixed access violation when closing popup...
Remove call to Application.Current.Dispatcher.CheckAccess() - seems there's a null point happening on a rare instance when Application.Current.Dispatcher is null
Rely on parent calling code to execute on the correct thread (which it was already executing on the UI Thread)
Merge pull request #465 from amaitland/bug-fix/dispatcher-null-pointer

Remove call to Application.Current.Dispatcher.CheckAccess() - Fix null pointer when Application.Current is null
Merge remote-tracking branch 'remotes/upstream/master' into JsBinding/Wip2

Conflicts:
	CefSharp.Core/CefAppWrapper.cpp
	CefSharp.Core/Wrappers/CefAppWrapper.h
	CefSharp.Core/Wrappers/CefSubprocessWrapper.h