BK-2386 Improve ChapterHistory admin to be more useful in django admin interface
BK-2386 Improve ChapterHistory admin to be more useful in django admin interface

olegpshenichniy/Booktype,danielhjames/Booktype,kronoscode/Booktype,ride90/Booktype,danielhjames/Booktype,sourcefabric/Booktype,olegpshenichniy/Booktype,olegpshenichniy/Booktype,ride90/Booktype,sourcefabric/Booktype,sourcefabric/Booktype,olegpshenichniy/Booktype,kronoscode/Booktype,sourcefabric/Booktype,eos87/Booktype,eos87/Booktype,ride90/Booktype,ride90/Booktype,ride90/Booktype,kronoscode/Booktype,kronoscode/Booktype,eos87/Booktype,eos87/Booktype,kronoscode/Booktype,danielhjames/Booktype,olegpshenichniy/Booktype,sourcefabric/Booktype,danielhjames/Booktype,eos87/Booktype,danielhjames/Booktype