Improve some activitiy messages
Improve some activitiy messages

Fixes #433

jtickle/wekan,nztqa/wekan,jtickle/wekan,mario-orlicky/wekan,oliver4u/sap-wekan,araczkowski/paczka.pro,Xperterra/wekan,FSFTN/Wekan,AdrianoCahete/wekan,mario-orlicky/wekan,felipecosta07/js,ddanssaert/wekan,felipecosta07/js,atFriendly/wekan,oliver4u/WEKAN_runpartner,oliver4u/WEKAN_runpartner,ahmadassaf/libreboard,gelojavonitalla/wekan,wekan/wekan,Serubin/wekan,ahmadassaf/libreboard,johnleeming/wekan,wekan/wekan,wykeith/cp2m,jtickle/wekan,johnleeming/wekan,Serubin/wekan,araczkowski/paczka.pro,wekan/wekan,pro-to-tip/wekan,araczkowski/paczka.pro,nztqa/wekan,pro-to-tip/wekan,johnleeming/wekan,AlexanderS/wekan,libreboard/libreboard,wekan/wekan,libreboard/libreboard,floatinghotpot/wekan,floatinghotpot/wekan,wekan/wekan,GhassenRjab/wekan,atFriendly/wekan,wykeith/cp2m,mario-orlicky/wekan,Xperterra/wekan,FSFTN/Wekan,oliver4u/sap-wekan,oliver4u/sap-wekan,ddanssaert/wekan,AdrianoCahete/wekan,johnleeming/wekan,oliver4u/WEKAN_runpartner,GhassenRjab/wekan,gelojavonitalla/wekan,GhassenRjab/wekan,ahmadassaf/libreboard,ddanssaert/wekan,nztqa/wekan,AlexanderS/wekan,Serubin/wekan