Finally fixed "floating statusbar", it has now proper ToolTip behaviour.
DownloadManager now won't ask you whether you want delete file if some
error in downloading occurs.
In all themes fixed TextBrowser's rounded borders in KDE
RSS feeds on page will now be checked only once, not every loading tick.
It should have quite big noticeable performance improvement when loading
more than one page at the same time.
Back/forward history menus now won't show duplicated entries and also
navigating with back/forward on pages won't leave you on the same page
as you are actually visiting.
Though this bug was appearing rarely, it was annoying.
This is not normal QtWebKit behaviour, in standard implementation it is
working just fine, but QupZilla is using QWebPage::extension error
pages, and when this error page appears in frame on page (for example in
<iframe>) it duplicates entry in history.
Added option to set default zoom in pages (in preferences: Browsing ->
Web Configuration -> Default zoom on pages:)
Also fixed one spelling mistake (thank to J. Hooverman)
Updated chinese translation file (zh_CN.ts)
