Author: Mihail Geshoski
MDL-62341 privacy: Add link to previous page in viewall policies page
http://git.moodle.org/gw?p=moodle.git;a=commit;h=64152010098a68ddae242a28aa18a3f4aecb7ed7
http://github.com/moodle/moodle/commit/64152010098a68ddae242a28aa18a3f4aecb7ed7
+ 3.5 en [backtoprevious,tool_policy]