prepare for 1.0.0-alpha.4

Fixes for 1.0.0-alpha.3

added delete all annos button in sia

update conda

Preparations for version 1.0.0-alpha.0: Adapted version in __init__.py

Described changes of KonradAdamczyk in changelog; Prepared to build v…

…ersion 0.0.7

adapted imageai package for gpu worker

prepare for release 0.0.5

fixed group/user id mixup in pipeline start service

get ci to work again