a couple bugs in kindlebox: - removed and renamed books weren't getting updated in db - if duplicates are added at once, only send one copy
a couple bugs in kindlebox:
- removed and renamed books weren't getting updated in db
- if duplicates are added at once, only send one copy

stephanie-wang/kindlebox,stephanie-wang/kindlebox,stephanie-wang/kindlebox,stephanie-wang/kindlebox