Merge pull request #378 from barijaona/bugfixes

Fix issue #373
Added Classy style (contributed by user PMP on cocoaforge)
Upgrade version number to 3.0.0 (finally !)
Set Webview’s delegates to nil before stopLoading

This ensures that any automatic release/deallocation of the WebView will not cause a crash
Solves issue #367
Setting delegates to nil before stopLoading

This is safer and speeds things up slightly.