BL-2425 Enable text in BackCover to be deleteable
BL-2425 Enable text in BackCover to be deleteable

This was a conflict between the class
   bloom-copyFromOtherLanguageIfNecessary and the user
   trying to delete text in a language.

BloomBooks/BloomDesktop,andrew-polk/BloomDesktop,StephenMcConnel/BloomDesktop,StephenMcConnel/BloomDesktop,BloomBooks/BloomDesktop,gmartin7/myBloomFork,andrew-polk/BloomDesktop,JohnThomson/BloomDesktop,StephenMcConnel/BloomDesktop,gmartin7/myBloomFork,gmartin7/myBloomFork,StephenMcConnel/BloomDesktop,JohnThomson/BloomDesktop,andrew-polk/BloomDesktop,JohnThomson/BloomDesktop,BloomBooks/BloomDesktop,andrew-polk/BloomDesktop,andrew-polk/BloomDesktop,JohnThomson/BloomDesktop,StephenMcConnel/BloomDesktop,BloomBooks/BloomDesktop,gmartin7/myBloomFork,JohnThomson/BloomDesktop,StephenMcConnel/BloomDesktop,gmartin7/myBloomFork,gmartin7/myBloomFork,andrew-polk/BloomDesktop,BloomBooks/BloomDesktop,BloomBooks/BloomDesktop