Add changes for v0.11 to the changelog
Add changes for v0.11 to the changelog

oliver4u/WEKAN_runpartner,libreboard/libreboard,pro-to-tip/wekan,wekan/wekan,jtickle/wekan,libreboard/libreboard,pro-to-tip/wekan,GhassenRjab/wekan,jtickle/wekan,FSFTN/Wekan,gelojavonitalla/wekan,wykeith/cp2m,ddanssaert/wekan,mario-orlicky/wekan,AlexanderS/wekan,nztqa/wekan,wekan/wekan,mario-orlicky/wekan,wekan/wekan,oliver4u/WEKAN_runpartner,johnleeming/wekan,wykeith/cp2m,FSFTN/Wekan,Serubin/wekan,johnleeming/wekan,ddanssaert/wekan,ahmadassaf/libreboard,wekan/wekan,mario-orlicky/wekan,jtickle/wekan,ahmadassaf/libreboard,johnleeming/wekan,oliver4u/sap-wekan,Serubin/wekan,oliver4u/sap-wekan,AlexanderS/wekan,Serubin/wekan,johnleeming/wekan,GhassenRjab/wekan,GhassenRjab/wekan,nztqa/wekan,oliver4u/sap-wekan,ahmadassaf/libreboard,ddanssaert/wekan,gelojavonitalla/wekan,wekan/wekan,nztqa/wekan,oliver4u/WEKAN_runpartner