[banquepopulaire] Backport support for convert virtual method in SplitKeyboard
In core 1.5, SplitKeyboard.checksum does not call convert. The banquepopulaire plugin requires it, so adding support in compat module
Fix #271 (closed)
In core 1.5, SplitKeyboard.checksum does not call convert. The banquepopulaire plugin requires it, so adding support in compat module
Fix #271 (closed)