Yet another release primarily focusing on bugfixes and compatibility. iCloud has now been tested and got its compatibility profile in compatibility_hints.py. Test runs towards GMX, Posteo and Purelymail have been skipped for the last few releases; with 3.5.0 the tests pass towards those. More work on getting synchronization right, and on avoiding overwriting changes when multiple clients update the same object.
Also released without the niquests dependency as 3.5.0a0.