Added CefRequestHandler.OnBeforePluginLoad
Fixed whitespaces issue
Added BrowserSettings and removed Nullable<bool>
Revert "Added BrowserSettings and removed Nullable<bool>"

This reverts commit d5b2cd3a08823c9485f11ef5d00207244291987a.
Reverted changes in Visual Studio solution file
Reverted changes which should not be committed
Added the usage of the OnBeforePluginLoad to the ExamplePresenter
Merge branch 'RequestHandlers' of https://github.com/fraenke75/CefSharp into fraenke75-RequestHandlers

Manual resolution including adding DECL OVERRIDE to the added virtual function in ClientAdapter.h
Move the documentation to IRequestHandler. With a fix to info on return value - which also matches CEF API doc :)
Polish OnBeforePluginLoad handler example code a bit.
For safety towards side effects in other code keep ExamplePresenter disabled for now though.
Change to `policyUrl` to match coding convention
Merge branch 'fraenke75-RequestHandlers'