对下面 Ticket 中提到的问题进行了修改：
List of 15 tickets closed in Piwik 1.7.1
#2461 UI: Selector to choose how many rows to display, in each report footer
#2967 archive.php should require the piwik hostname as a parameter
#2961 archive.sh and archive.php are brokenn with force_ssl
#2943 issue in archive.php when calling over https
#2944 Performance regression in tracker for high traffic website
#2972 Dashboard widget layout resets to default layout unexpectedly
#2975 Goals conversion by "referrer type" does not credit "Direct entry"
#2950 Email reports sent with web cron are not sent in the user language
#1590 Check that chmod commands are given when auto update missing permissions
#2953 MultiSites Plugin API: String typecast does not invoke magical __toString method for PHP < 5.2.0
#2960 Opt-Out does not fallback to English when language is invalid
#2954 PHP 5.1.6 bug: Fatal error: Cannot access self:: when no class scope is active in core/API/Proxy.php on line 326
#2941 Warning: getimagesize(plugins/UserSettings/images/os/Others.gif) failed to open stream
#2940 deprecate enable_framed_logins
#2939 Metadata – "Actions – Main metrics" – value is false instead of 0
这次升级没有对数据库进行修改，因此只需要升级程序文件就可以了。
我们的 svn 版本库已经升级到最新的 1.7.1 版了，可以使用 svn up 进行更新即可。