30092
-----
10253 Unrecoverable error when deleting methods
https://pharo.fogbugz.com/f/cases/10253
10139 Nautilus does not properly indent hierarchies
https://pharo.fogbugz.com/f/cases/10139
Diff information:
http://smalltalkhub.com/#!/~Pharo/Pharo30/diff/Spec-Tools-MarcusDenker.104
http://smalltalkhub.com/#!/~Pharo/Pharo30/diff/Nautilus-MarcusDenker.450