It is now saving webview's url, not url of request (used to have
problems on some pages)
And addition small improvements
- added possibility to open rss feed in new tab with middle click
- middle click on home button loads homepage in new tab
- right click on back/next buttons now show menu instantly (instead of
holding left mouse button to get menu shown)
Using now qobject_cast everywhere possible instead of c++ type cast
Middle mouse click in bookmarks manager (library + sidebar + toolbar)
and history manager (library + sidebar) now opens a new tab
