[Merge] lp:~artmello/webbrowser-app/webbrowser-app-format_top_sites into lp:webbrowser-app

[Olivier Tilloy]

Review: Needs Fixing

 - The fix to src/app/webbrowser/history-model.cpp (insertStatement) should go in the prerequisite branch (lp:~artmello/webbrowser-app/webbrowser-app-remove_top_sites), not this one.

 - I’m not sure I understand the new unit test (shouldUpdateRowCountAndNotifyAfterAnEntryIsRemoved): when removing the first row, I would expect a rowsRemoved signal to be emitted for the first row, and a rowsInserted signal to be emitted for the new row that comes into view. Is this not how the limit proxy model works?
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https://code.launchpad.net/~artmello/webbrowser-app/webbrowser-app-format_top_sites/+merge/255298
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