Update lib/booki/messaging/models.py
Update lib/booki/messaging/models.py
sourcefabric/Booktype,sourcefabric/Booktype,olegpshenichniy/Booktype,btat/Booktype,rob-hills/Booktype,kronoscode/Booktype,olegpshenichniy/Booktype,okffi/booktype,MiczFlor/Booktype,okffi/booktype,rob-hills/Booktype,kronoscode/Booktype,olegpshenichniy/Booktype,rob-hills/Booktype,olegpshenichniy/Booktype,sourcefabric/Booktype,btat/Booktype,ride90/Booktype,olegpshenichniy/Booktype,MiczFlor/Booktype,ride90/Booktype,eos87/Booktype,kronoscode/Booktype,okffi/booktype,ride90/Booktype,ride90/Booktype,aerkalov/Booktype,sourcefabric/Booktype,eos87/Booktype,kronoscode/Booktype,aerkalov/Booktype,ride90/Booktype,MiczFlor/Booktype,eos87/Booktype,okffi/booktype,danielhjames/Booktype,danielhjames/Booktype,rob-hills/Booktype,sourcefabric/Booktype,okffi/booktype,danielhjames/Booktype,btat/Booktype,MiczFlor/Booktype,aerkalov/Booktype,btat/Booktype,eos87/Booktype,kronoscode/Booktype,danielhjames/Booktype,danielhjames/Booktype,MiczFlor/Booktype,eos87/Booktype