* Making fields starting with _ always mutable (ignored by immutable model)
0.3.3
---
* Fixing problem where immutable (non undeletable) models with default lock_field couldn't be deleted after save (because of Django deletion collector needing to change id field)
0.3.2
---
* Allowing for full inheritance of immutability options within Meta
0.3.1
---
* Fixing problem with abstract models
0.3
---
* Version by Tim Diggins (red56) calling it django-immutablemodel and making immutability after save by default
0.2
---
* Version by Helder Silva (skandal) on bitbucket adding sign_off field. (not formally released)