activity tokens and with user privacy optout option.

thanks to sarfarazsoomro. small coding standard fixes

#195965, #195969, #196003, #196014 - various bug fixes and a refactoring from includes to contrib modules by robertDouglass and sirkitree

fixing the following bugs: 195752 - uninstall hook, 195772 - cleanup, 195777 - reduce hardcoded html, 195751 - cleaner includes, 195799 - refactor _page and theme of, 195839 - _activity_off improve